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Among the fog-shrouded streets of Victorian London, where gas lamps flicker and mysteries lurk in the shadows, we find the world’s most famous detective: Sherlock Holmes. Created by Sir Arthur Conan Doyle in 1887, Holmes and his uncanny sleuthing abilities have captivated readers for more than a century. With his razor-sharp intellect, quirky habits, and very particular set of skills, Holmes is capable of solving even the most perplexing cases, while his signature deerstalker cap, magnifying glass, and pipe have become synonymous with the art of deduction.

Here we delve into the world of Sherlock Holmes, uncovering some fascinating facts about this legendary story. Elementary, you say? Fear not, dear reader, for the game is afoot!

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Sherlock Holmes Was Inspired by a Real Person

Sherlock Holmes may be a fictional character, but he wasn’t solely conjured from Doyle’s imagination. The author modeled his detective’s methods and mannerisms on those of Dr. Joseph Bell, who was his professor at the University of Edinburgh. Bell was a charismatic teacher who amazed his students with demonstrations in which he could determine a patient’s occupation and other personal details just by studying the patient’s appearance and behavior. 

In 1892, Doyle wrote to Bell, “It is most certainly to you that I owe Sherlock Holmes, and though in the stories I have the advantage of being able to place him in all sorts of dramatic positions I do not think that his analytical work is in the least an exaggeration of some effects which I have seen you produce in the outpatient ward.”

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Sherlock’s Iconic Hat Is Never Mentioned in Doyle’s Stories

The classic image of Sherlock Holmes almost always depicts him as wearing a deerstalker cap. Holmes’ headwear is so iconic that it’s become stereotypical among the fictional detectives who succeeded him, especially those of the comical variety. (Detective Pikachu, for example, wears a deerstalker in the Pokémon video games and the associated film.) Doyle, however, never explicitly mentions the deerstalker at any point in the entire Holmes canon.

The distinctive hunting cap only became associated with Holmes through the illustrations of Sidney Paget, who drew the detective in 38 stories for The Strand Magazine between 1891 and 1908. Paget first portrayed Holmes with a  deerstalker — a hat normally associated with hunting and shooting in rural areas — in an October 1891 story called The Boscombe Valley Mystery, because the story takes place in the countryside. The image stuck, and the hat became part of Holmes’ signature look in all his future mysteries, including those with urban settings. 

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221B Baker Street Didn’t Really Exist — Until It Did

According to Doyle’s stories, 221B Baker Street — one of literature’s most famous addresses — is where Holmes lived in London from 1881 to 1904. When the stories were written, however, Baker Street was a real location but Holmes’ exact residence was not, as the house numbers only went into the 100s. In the 1930s, the street was extended and the Abbey National Building Society moved into the premises occupying 219 to 229 Baker Street. The new occupant soon began receiving fan mail addressed to Holmes. Rather than simply dispose of the letters, however, Abbey National hired someone to answer the mail while posing as Holmes’ secretary or even Sherlock himself — something it continued to do until moving headquarters in the 2000s. The Sherlock Holmes Museum, which opened in 1990, is now located at 221B Baker Street.

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For Sherlock Holmes, One Woman Stood Above All Others

In a world where Sherlock Holmes consistently outwits everyone around him, one character stands out as his match: Irene Adler. Appearing in the short story “A Scandal in Bohemia,” Adler is the only woman to have ever outsmarted Holmes. She’s also one of the few people to earn his genuine admiration. Out of respect, Holmes refers to her as “the woman,” and Doyle writes that “in his eyes she eclipses and predominates the whole of her sex.” Adler’s character has been expanded upon in numerous adaptations and is often portrayed as a love interest for Holmes — but in Doyle’s original story, Holmes’ admiration for her is purely intellectual.

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Sherlock Holmes Holds a Guinness World Record

Sherlock Holmes holds the Guinness World Record for the most portrayed human literary character in film and TV. When the record was bestowed on Holmes in 2012, he had been portrayed 254 times in various films and TV shows. At least 75 different actors have played the super sleuth, including Christopher Lee, Charlton Heston, Peter O’Toole, Roger Moore, John Cleese, Benedict Cumberbatch, and Robert Downey Jr. Even more adaptations remain in development, proving Holmes remains as popular and mesmerizing as ever, nearly a century and a half after he solved his first mystery.

Tony Dunnell
Writer

Tony is an English writer of nonfiction and fiction living on the edge of the Amazon jungle.

Original photo by Creative Space Studio/ Shutterstock

Each year, at the beginning of November, people in Mexico and many other parts of Latin America celebrate Día de los Muertos — the Day of the Dead. It’s not as somber as it may sound: People open their homes to warmly welcome back the spirits of lost loved ones with food, drink, and fun festivities more akin to a family reunion than a funeral. 

While there are some shared elements between the two celebrations, the Day of the Dead is not the same thing as Halloween: Its roots extend back thousands of years, originating from ancient Mesoamerican customs that, over time, fused with Spanish culture. Today, the holiday’s distinctive sugar skull imagery is widely recognized, and the success of films such as Pixar’s Coco has introduced the Day of the Dead to a whole new audience. But these hardly scratch the surface of the holiday’s rich traditions. Here are five fascinating facts about the Day of the Dead that may be new to you.

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It’s Not Quite Mexico’s Version of Halloween

Despite its famous skull and skeleton imagery — and the fact that it’s celebrated very close to October 31 — the Day of the Dead isn’t the same as Halloween. Rooted in ancient Mesoamerican traditions and observed primarily on November 1 and 2, Día de los Muertos is a joyful celebration of life and death that honors deceased loved ones. 

The holiday wasn’t widely celebrated by Latinos in the U.S. until the 1970s and 1980s; around this time, artists and activists introduced the tradition to their communities as part of the Chicano movement, which promoted Mexican American heritage and empowerment. As the holiday became more visible in the U.S., its similarities meant it often got lumped in with spooky season, and in recent years, the holiday has indeed begun adopting certain Halloween traditions.

Children celebrating in Mexico now often dress up in costumes and go trick-or-treating during the week leading up to the Day of the Dead, and the festive decor has started incorporating cobwebs, witches, and pumpkins. As the holiday continues to make room for new traditions such as candy and creepy stuff, the Day of the Dead remains a distinct cultural celebration that goes beyond spooky aesthetics, ultimately celebrating life in death. 

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A Special Kind of Bread Is Made for the Deceased

An essential part of Day of the Dead celebrations are the ofrendas, or altars, that families set up to honor the spirits of deceased loved ones. The ofrendas typically feature multiple tiers representing heaven, Earth, and purgatory. Candles light the way for spirits returning to the living world, while a special Mexican sweet bread known as pan de muerto, or bread of the dead, awaits the hungry souls of the dearly departed. 

The bread is similar in texture to challah breads, flavored with anise and orange, and usually coated with sugar — it’s sometimes even made in the shape of little skulls. By the time the holiday is over, the bread is said to have no smell or taste left to it; the dead have supposedly eaten it all.

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There’s a Day for Children and a Day for Adults

Although it’s known as the Day — singular — of the Dead, there are in fact two distinct days in the celebration. The first day, November 1, is also known as Día de los Angelitos (Day of the Little Angels) and is dedicated to remembering and celebrating children who have departed. The second day, November 2, focuses on receiving the souls of deceased adults. The two celebrations don’t differ much aside from the offerings left on the ofrenda: In addition to the standard sugar skulls, candles, and food, toys may be offered up on the children’s day, while older family members may be remembered with other favorite personal items such as a piece of clothing or an offering of alcohol.

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Marigolds Are Used To Attract the Deceased

Of the many colorful Day of the Dead traditions, the marigold flower shines as not only one of the most vibrant, but also one of the most crucial. Marigolds are traditionally known as cempasúchil in the Aztec language Nahuatl; the word means “twenty flower” and is taken from the many defined petals of the native Mexican plant. 

Marigolds bloom in abundance across Mexico throughout October and November and have been used for decorative and medicinal purposes as far back as the Maya and Aztec civilizations. During Day of the Dead preparations, families arrange the flowers’ bright orange and yellow blossoms in intricate patterns on ofrendas and at gravesites. They’re more than just a pretty decoration, though — marigolds’ strong, musky scent is believed to beckon the spirits and help guide them along their journey back home. 

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Hairless Dogs and Monarch Butterflies are Important Day of the Dead Critters

The most identifiable Day of the Dead imagery may be the painted sugar skulls and sunny marigolds, but they’re not the holiday’s only significant symbols. A breed of hairless dogs known as Xoloitzcuintli, or Xolos, hold a special place in Mexican culture and are often featured in the celebrations. It’s not unusual to see them draped in flowers and wearing sugar skull costumes. The ancient pup gets its name from two Aztec words: Xolotl, the god of lightning and death, who was believed to guide souls through the underworld, and itzcuintli, meaning dog. Like its namesake, the Xolo is believed to help guide returning spirits for the holiday — a loyal companion in both life and death. 

The magnificent monarch butterfly also makes its presence known on this momentous occasion. As the orange-and-black beauties migrate south each year, their arrival in Mexico coincides perfectly with the Day of the Dead celebrations. The Aztec people have long held butterflies in high regard, viewing them as the souls of fallen warriors. Today, the winged creatures are believed to be vessels for the souls of the departed, returning home to celebrate with their beloved families.

Nicole Villeneuve
Writer

Nicole is a writer, thrift store lover, and group-chat meme spammer based in Ontario, Canada.

Original photo by AYO Production/ Shutterstock

When we dine out, we’re in search of a great meal at a fair price. However, many restaurants operate on thin profit margins, especially in recent years with rising ingredient costs and a sluggish labor market. To attract and retain customers — and get them to spend as much as possible — restaurant owners employ a variety of strategies, from adjusting the ambience to how they design their menu. Such tactics can be essential for staying afloat in a competitive industry where a bad year, or even a few slow months, can mean the difference between a restaurant remaining open or closing their doors for good. While these practices aren’t dishonest — many are practical and based on common sense — they can involve subtle psychological manipulation designed to influence your perception, improve your experience, and increase your spending.  

From the layout of the menu to the brightness of the lighting and the tempo of the music, here are five tricks restaurants use to make us spend more.

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They Use Menu Psychology

What catches your attention when you read a menu isn’t coincidence – it’s science. Every element of a menu is carefully chosen and research-based, from what colors are used to how many menu items are offered. For example, restaurant menus that feature appetite-stimulating colors such as orange, red, and yellow can effectively pull a customer’s eye to certain areas of the menu. The menu’s color scheme, such as blue for a seafood restaurant or green for a farm-to-table experience,  can also help define the restaurant’s brand and subconsciously build anticipation for the meal.

When it comes to the number of dishes offered, research suggests that fewer is better and that seven dishes per section is the magic number. Limiting the number of items offered keeps diners from feeling overwhelmed by choice and helps guide them toward specific, often high-profit-margin selections. This careful balance is designed to craft a menu that’s visually appealing and simple to read in order to enhance your dining experience.

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They Know the Power of Buzzwords

Restaurants also use psychology to entice diners and encourage higher spending through the use of buzzwords. We typically ignore outrageous claims such as “the world’s finest ingredients” or “the best steak you’ve ever had,” but our interest may be piqued by appealing adjectives that spark the imagination and promise an elevated dining experience, such as “grass-fed,” “fire-roasted,” and “stone-ground.”

Detailed and engaging menu descriptions can also create a unique narrative and influence diners in a variety of profitable ways. We may feel nostalgic when we read a description of an apple pie that starts with a “golden, flaky crust just like Grandma used to make.” Our sense of adventure may be stimulated by a free-range chicken dish “marinated in sun-drenched spices from the Mediterranean.” Alternatively, we might be drawn to the familiarity of a beloved brand name, such as “a creamy and decadent Oreo cheesecake.”

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They Charm Us With Strategic Prices

We have a lot of options when it comes to where we dine, so restaurants do their best to make sure their prices are competitive. They also employ psychological tactics when listing the prices of menu items, such as the common practice of not using currency signs. For instance, a salad that costs nine dollars might be listed as “9” rather than “$9.00.” Some restaurants even spell out the prices of menu items, which research shows can encourage people to spend up to 30% more.

Restaurants also use strategic pricing techniques to appeal to customers. Rather than listing prices in a column next to menu items, which forces you to compare prices, the cost of dishes will be listed directly below the description of the dish and in the same font. This directs your attention to the description and encourages you to skim over the price. When we do notice the price, it may be in the form of charm pricing, or left-digit effect, a technique businesses use to create perceived value. When a menu item is priced for $9.99 instead of $10.00, the brain reads the number nine first and interprets the cost of the dish as nine dollars.

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They Use the Decoy Effect

In the restaurant industry, a high-profit-margin item is one that’s low-cost to make but that’s priced relatively high by comparison, resulting in a significant profit margin. For example, a pasta dish such as spaghetti with marinara sauce is inexpensive to prepare, but restaurants can charge a premium due to presentation and perceived value. To attract your attention to these profitable items, restaurants will often list them on the menu near a much more expensive “decoy” item.

Restaurants know most people likely won’t order the most expensive entrée on the menu, but they do expect you to notice how expensive it is. Known as the decoy effect, this psychological trick can make us spend more than we intend because we make our decision based on what seems like the more reasonable choice. For instance, when a high-profit item such as the aforementioned pasta dish is placed near a decoy item, such as a wagyu beef dish, the pasta dish seems even more appealing — and affordable. A couple well-placed high-ticket items on a menu can actually convince people to spend more than they would if every item was around the same price.

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They Create An Ambience That Makes Us Want to Linger

From the color of the décor, to the brightness of the lighting, to the type of the music they play, restaurants are constantly looking for ways to create a welcoming environment that encourages you not only to linger, but also to spend more money. If your favorite restaurant is decorated in shades of red, it’s because that color has been shown to increase heart rate, quicken breathing, and stimulate the appetite, encouraging people to eat more than they typically would when surrounded by other colors.Researchers also know that light and sound can influence how we dine. Softer lighting and music have been linked to restaurant diners consuming fewer calories and enjoying their food more. Diners connect lower levels of light with higher prices and higher service quality, while slow, ambient music inspires more leisurely dining, which can ultimately result in higher spending. If people are eating slowly, restaurants can raise prices and cut menu portions to save money on ingredients, knowing diners will still feel satisfied when they leave.

Kristina Wright
Writer

Kristina is a coffee-fueled writer living happily ever after with her family in the suburbs of Richmond, Virginia.

Original photo by sandorgora/ iStock

Around the world, people are living longer than ever before. In 1900, the global average life expectancy was just 32 years; in 2024, it was 73.33 years. This also means the world has an increasing number of centenarians — people who live to be 100 or older. According to United Nations data, there are an estimated 722,000 centenarians worldwide. This number is expected to continue rising with longevity trends, with the global centenarian population projected to be around 4 million by 2054. With all that in mind, and considering our own increased likelihood of one day being centenarians, let’s take a look at some fascinating facts about the people who achieved this senior status.

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Women Are More Likely To Live To 100

In the United States, centenarians account for just 0.03% of the overall population, a number that’s expected to rise to 0.1% by 2054. Of the more than 100,000 centenarians in the United States, an astounding 78% are women. Several factors contribute to women being more likely to live to 100, including the fact that women age more slowly than men, delaying the onset of health issues such as cardiovascular disease and stroke. Women also tend to be more risk-averse than men and are less likely to engage in behaviors such as smoking, drinking alcohol, and using recreational drugs, all of which can lead to long-term health issues.

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Genetics Play a Bigger Role Than Lifestyle for Centenarians

Scientists believe that lifestyle factors such as eating healthy and staying physically active play a more important role than genetics in influencing our health and lifespan until we’re in our 70s. But as we age into our 80s and beyond, genetics start to play a larger part in our health and longevity. The study of longevity genes is still developing, but genome sequencing studies have identified certain gene variants that can influence lifespan. Among these gene variants are ones that support the function and maintenance of the body’s cells and those that are linked to lipid levels, inflammation, and the cardiovascular and immune systems. Some, but not all, centenarians have these gene variants, and scientists believe there may be other variants contributing to longer lifespans that have not yet been identified.

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Centenarians Are Resilient in Many Ways

Centenarians often seem to be remarkably resilient with regard to their health, which can be attributed to both lifestyle and genetic factors. However, there are three other kinds of resilience that are connected to longevity: cognitive resilience, economic resilience, and personal resilience. Key factors including strong intellectual function, economic and social support, and a robust personality are essential for maintaining the quality of life that contributes to longevity. Researchers are interested in better understanding how the oldest members of society maintain their resilience in these areas, in the hopes that the answers may help improve the health and longevity of the population at large.

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25% of Centenarians Retain Their Cognitive Health

Not everyone who lives to 100 and beyond maintains their cognitive health, but we know cognitive resilience — maintaining or regaining cognitive function despite aging, brain damage, or disease — contributes to quality of life and supports longevity. Studies indicate 50% of centenarians have clear symptoms of dementia and 25% show some signs of cognitive impairment, while the remaining 25% are considered cognitively healthy. Researchers speculate that some people are resistant to the brain-damaging effects of Alzheimer’s disease while others are cognitively resilient, demonstrating a cognitive reserve that allows them to better cope with the pathological brain changes of the disease.

While we cannot prevent dementia or Alzheimer’s disease, studies have noted that certain lifestyle factors can contribute to our cognitive resilience, including consuming a Mediterranean-style diet and exercising regularly, as well as socializing with other people and engaging in intellectual pursuits through education and employment.   

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Many Centenarians Share Two Specific Traits

Despite differences in lifestyle, studies have shown centenarians tend to share two specific personality traits: a positive attitude and a high degree of emotional awareness. In studies, many centenarians describe themselves as being optimistic, easygoing, and extroverted, and often mention laughter as essential to their lives — all qualities that reduce anxiety and depression and contribute to good overall mental health. Many centenarians also report being comfortable with openly expressing their emotions, which helps maintain healthy relationships and contributes to our overall well-being. That said, researchers continue to study whether these traits directly contribute to longevity or whether they may simply be a byproduct of living longer.

Kristina Wright
Writer

Kristina is a coffee-fueled writer living happily ever after with her family in the suburbs of Richmond, Virginia.

Original photo by Jodi Jacobson/ iStock

The animal kingdom provides a cacophony of sounds, from subtle quacks to deafening roars and even aquatic rumbles. Some particularly noisy creatures have evolved to produce sounds of a truly extraordinary volume. These are sometimes created through vocalizations such as growls, howls, and shouts, or by more mechanical means — for example, the rubbing together of two body parts, otherwise known as stridulation. These sonorous adaptations may serve various purposes, such as communication, echolocation, hunting, and mating rituals. Here, we explore some of the world’s loudest animals — in ascending order — from the jungle canopy to the depths of the ocean. 

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Howler Monkey (90 dB)

The howler monkey, native to the forests of South and Central America, is the loudest of all the primates — and has a claim to be the loudest land animal relative to its size. These noisy creatures can produce calls of at least 90 decibels, roughly as loud as a lawnmower. Their distinctive whooping howls can travel for miles through dense forest canopies, helping them communicate with other group members, attract potential mates, and warn rivals to stay away. Howler monkeys achieve this volume thanks to their enlarged hyoid bone, which acts as a resonating chamber (the bigger the hyoid, the deeper the howl).  

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Kakapo (132 dB)

The kakapo — also known as the “mighty moss chicken” — is a particularly peculiar parrot, being both flightless and nocturnal. The critically endangered New Zealand native is the world’s heaviest and longest-living parrot as well as one of the loudest birds in the world. During mating season, male kakapos produce a distinctive booming call that can reach up to 132 decibels (louder than a jackhammer) and can be heard more than 4 miles away. They achieve this noise by first inflating their thoracic air sac, then emitting a deep, low-frequency boom every one or two seconds. After 20 to 30 booms, the male kakapo makes a high-pitched metallic “ching” sound, satisfied that any interested females will now be able to pinpoint his location. 

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Greater Bulldog Bat (140 dB)

Native to Latin America, the greater bulldog bat is a master of echolocation with a surprisingly supercharged voice. These bats can emit calls up to 140 decibels in volume, which is louder than fireworks and about the same as a jet engine at takeoff, placing it above the human pain threshold for sound. Their ultrasonic calls, however, are typically beyond the range of human hearing. Bulldog bats use their intense vocalizations primarily for echolocation, allowing them to navigate and hunt in complete darkness. The high-frequency sound pulses are also crucial for detecting prey such as small fish and insects just below the surface of water. 

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Atlantic Spotted Dolphin (163 dB)

Dolphins are renowned for their cheerful whistles, clicks, and chirps, but few people may realize how loud they can be. The loudest of them all is the Atlantic spotted dolphin, a charismatic marine mammal found in warm temperate and tropical waters of the Atlantic Ocean. These dolphins can generate sounds of at least 163 decibels using a mass of fatty tissue in their forehead called a melon, which acts as a sound lens to scatter sound waves similar to how an optical lens scatters light. They typically use clicks to sense their surroundings through echolocation and whistles to communicate with other members of their species (and possibly even some other species). 

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Pistol Shrimp (210 dB)

The pistol shrimp, also known as the snapping shrimp, is a small crustacean with a big and surprisingly noisy attitude. These creatures, which only reach a few inches in size, are capable of producing a sound that can reach an astounding 210 decibels, louder than a gunshot. Studies of Synalpheus pinkfloydi — a species of pistol shrimp named after the rock band Pink Floyd — have revealed how and why this little shrimp manages to be so loud. By snapping shut one oversized claw with tremendous speed and force, the shrimp creates a cavitation bubble that shoots out with such intensity it produces an ear-splitting snap and a shockwave capable of stunning or killing small prey. 

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Sperm Whale (230 dB)

The sperm whale is generally regarded as the loudest animal in the world. These marine mammals can produce vocalizations reaching a whopping 230 decibels, loud enough to kill prey and, theoretically, even humans. Producing such incredible sounds involves a complex process in which the whale forces air through its right nasal passage to a pair of clappers near the front of its head known as the phonic lips or “monkey lips.” These then clap shut, producing a loud click that’s amplified and shot out into the watery world. These sounds allow sperm whales to navigate and hunt in the darkness of the ocean depths and communicate with other sperm whales over vast distances — in some cases thousands of miles.

Tony Dunnell
Writer

Tony is an English writer of nonfiction and fiction living on the edge of the Amazon jungle.

Original photo by aycan balta/ Shutterstock

Genes are the basic units of inheritance, passing traits from parents to offspring and containing the information that determines our physical and biological attributes. To put it simply, they carry the instructions that make all of us unique. Contained within chromosomes, which are located in the nuclei of almost every cell in our bodies, each gene contains information that tell our cells to make proteins, which perform a wide array of tasks from making eye pigments to attacking invading bacteria. As such, our genes hold the secrets to our physical traits, our predispositions to certain diseases, and even aspects of our behavior.

The study of genetics has revolutionized our understanding of biology, medicine, and human evolution. And as we continue to unravel the complexities of the human genome, we discover ever more intriguing aspects of these tiny yet powerful units of heredity. Here are some facts about our genes that highlight the wonder and complexity of the genetic code that connects and shapes us all.

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The Human Genome Contains Far Fewer Genes Than Expected

In 1990, the Human Genome Project began identifying, mapping, and sequencing all the genes of the human genome, and determining the base pairs that make up human DNA. (DNA, genes, and chromosomes all work together to make us who we are.) Initially, it was estimated that humans have around 100,000 genes. But the findings of the project, which was concluded in 2003, revealed this number to be significantly lower; today, scientists estimate the number of genes at just under 20,000

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We Share a Surprising Number of Genes With Other Animal Species

While we humans may look markedly different from one another, we are remarkably similar at the genetic level. Any two individuals share approximately 99.9% of their DNA sequence, meaning a miniscule 0.1% difference accounts for all the genetic variation among humans — our size, shape, facial features, and so on. Perhaps even more surprising are the genetic similarities between humans and other species. Humans and chimps, for example, share a surprising 98.8% of their DNA. Most of the genes in humans and chimps are nearly identical, but identical genes are used in different ways and in varying amounts across species, which explains our very notable differences. For example, a wide range of species have the PAX6 gene, which is responsible for the development of distinctly different eyes in everything from humans to fish, flatworms, parakeets, and water fleas. 

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Genes Have a Significant Influence on Our Behavior

Our genes certainly shape our physical traits, but they might be responsible for far more than just our looks. Studies suggest many routine aspects of our daily lives are also partially driven by our genome. Our genes can play a role in our inclination for or aversion to all manner of different activities, from our preference for tea or coffee, to our enjoyment (or not) of exercising, to whether we like gardening or doing crossword puzzles. Researchers have also discovered, using data collected from a large sample of fraternal and identical twins, that our genes may even shape our political beliefs.

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Genetic Mutations Can Be Beneficial, Harmful, or Neutral

Mutations happen when a change occurs in a gene or chromosome. It can be caused by external factors, such as ionizing radiation or chemical mutagens, or it can occur spontaneously or through inheritance. The idea of mutation tends to have a negative connotation, but not all mutations are bad; they’re typically described as being beneficial, harmful, or neutral. Beneficial or advantageous mutations are necessary for the long-term survival of populations and species — this is how we evolve and adapt. In humans, having some mutations is commonplace at birth — every baby has around 70 brand-new or “de novo” mutations in their genes.

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Genes Can Be Turned On and Off

Our genes can be activated or deactivated without changing the actual DNA sequence itself, in a process known as epigenetics. This involves minute chemical tags that are added or removed from our DNA in response to changes in our environment. In other words, our genes can essentially be turned on and off. This allows us to adapt to our surroundings and lived experiences without requiring a more drastic or permanent shift in our genomes. When it comes to the age-old debate of nature versus nurture, epigenetics proves that our genes are certainly not set in stone once we’re born, and that both nature and nurture play their part when it comes to our development.

Tony Dunnell
Writer

Tony is an English writer of nonfiction and fiction living on the edge of the Amazon jungle.

Original photo by Archive PL/ Alamy Stock Photo

For more than seven decades, Carol Burnett has delighted audiences with her witty and uproarious brand of humor. The Carol Burnett Show, in particular, remains one of the funniest and most creative variety programs to ever grace our television screens. Throughout her prolific career, Burnett has excelled not just on TV, but also on stage and film, carving out a path for the many comedic female voices she inspired along the way. Here’s a look at her incredible life and career, including some lesser-known facts that may surprise you.

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Strangers Helped Launch Her Career 

Burnett was born in San Antonio, Texas, and as a young girl she moved into an impoverished neighborhood in Hollywood, California. In 1951, she was admitted to UCLA, where she hoped to pursue journalism. However, the family was unable to afford the annual $50 tuition (around $605 today), and it appeared at first that her college education might be an unreachable dream. But one day, a mysterious envelope arrived in her mailbox containing enough money to cover the cost of tuition. To this day, Burnett says she has no idea who provided the funds.

Once at UCLA, Burnett switched her focus from journalism to theater. One night during her junior year, she and several classmates were performing at a home in San Diego when she was approached by a wealthy stranger. The businessman asked Burnett about her dreams, to which she replied that she hoped to move to New York City with her husband, Don, and pursue a career as a performer. In response, the benefactor gifted $1,000 interest-free loans to both Burnett and her husband on three conditions: that they be repaid within five years, that his identity never be revealed, and that Burnett would help others pursue their dreams if she became a success. Burnett held true to her word, and the loan allowed her to travel to NYC in pursuit of fame.

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Her Breakout Role Was on Broadway

Before achieving fame on the small and silver screens, Burnett’s acting career began in New York City with revues at the Rehearsal Club, a boarding house for young women hoping to carve out careers in the performing arts. In 1957, Burnett took to performing at cabaret clubs around the city. She became popular for performing a parody song titled “I Made a Fool of Myself Over John Foster Dulles” — Dwight D. Eisenhower’s secretary of state — earning her appearances on The Tonight Show and The Ed Sullivan Show.

Her big break came in 1959, when she booked the role of Princess Winnifred in the first Broadway production of Once Upon a Mattress. This memorable performance earned Burnett a Tony Award nomination for Best Performance by a Leading Actress in a Musical. The success of this gig also afforded her the ability to repay the $1,000 she owed the California businessman, a feat she accomplished five years to the day after receiving the loan. By this time a huge name in her own right, Burnett booked a recurring role on The Garry Moore Show and later headlined Carnegie Hall alongside Julie Andrews in 1962.

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Her Signature Ear Tug Was a Message to Her Grandmother

From 1967 to 1978, every episode of The Carol Burnett Show ended with a sign-off song, after which Burnett would tug on her left earlobe. This gesture was actually a secret, heartwarming message for her grandmother Mae. Mabel Eudora “Mae” Jones raised Burnett for most of her childhood and often took her to the movies, which helped cultivate her love of the performing arts. Burnett has admitted she borrowed the gesture from a dance troupe she saw, who used the ear tug to say “hi” to their kids while on stage.

After Burnett made it to New York, she called to tell her grandmother she was going to be on television, to which Mae replied, “Well, you gotta say hello to me.” Burnett took this request to heart. Though Mae passed away the same year The Carol Burnett Show premiered, Burnett continued to tug on her ear at the end of each episode as a way of saying “I love you” to her dear grandmother.

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She Taught Her “Tarzan Yell” to an Opera Singer

When Burnett was around 9 or 10 years old, she learned to do a bellowing “Tarzan yell,” which eventually became a trademark part of her act as an adult. During the Q&A portion of each episode of The Carol Burnett Show, audience members frequently requested that Burnett perform this comedic yodel.

During a 2013 interview with Larry King, Burnett explained she’d figured out how to perform the yell after seeing an early Tarzan film in theaters. She also noted how she taught the yell to world-famous opera singer Beverly Sills. Burnett and Sills were contemporaries who became friends while working on the 1976 musical TV special Sills and Burnett at the Met. Sills specifically asked Burnett how to do the yell, and Burnett happily obliged to teach her. Sills immediately replicated the yell with perfection and called it an excellent vocal exercise.

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Each Episode of The Carol Burnett Show Was Taped Twice

Although the program had a live feel, each episode of The Carol Burnett Show was actually taped two times in front of two separate studio audiences. The first taping often stuck closely to the script, with actors delivering the jokes as written. The second taping allowed for more improvisation and ad-libbing, often resulting in even funnier jokes.

After each taping was complete, producers spliced the best moments together into a single episode that made the air. There were rarely — if ever — any additional retakes past that point, meaning if someone flubbed a line during both tapings, that mistake would be included in the final cut. In the end, this made for a final product that still emulated the feel of a single live taping.

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She’s One Award Short of an EGOT

Burnett has racked up a plethora of accolades throughout her illustrious career, including several Emmys very early on — in 1962 for her role on The Garry Moore Show and in 1963 for Julie and Carol at Carnegie Hall. Between 1972 and 1975, she took home three Emmys for The Carol Burnett Show, and she then won another in 1997 for her guest role on Mad About You. Most recently, she won the 2023 Emmy for Outstanding Variety Special for Carol Burnett: 90 Years of Laughter + Love.

In addition to her numerous TV honors, Burnett was awarded a Special Tony Award in 1969, in addition to nominations for Once Upon a Mattress in 1960 and Moon Over Buffalo in 1996. She was also the winner of a 2017 Grammy for Best Spoken World Album (for the audiobook of her memoir In Such Good Company), putting her just one Oscar away from achieving the highly coveted EGOT (Emmy, Grammy, Oscar, Tony). In commemoration of a lifetime of entertainment, Burnett was awarded the Presidential Medal of Freedom in 2005, and was also the 2013 winner of the Mark Twain Prize for American Humor.

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Interesting Facts writers have been seen in Popular Mechanics, Mental Floss, A+E Networks, and more. They’re fascinated by history, science, food, culture, and the world around them.

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Humans have been cultivating fruit for around 11,400 years. Evidence suggests figs were the first, propagated by the people of ancient Jericho. Nowadays, there are estimated to be upwards of 2,000 varieties of fruit grown around the world. While we’re likely all familiar with apples, oranges, and bananas, there are also hundreds of fruits you may never have heard of, let alone tried for yourself. Many of these unfamiliar fruits are staple crops in the places they’re grown, but can be difficult to find in markets outside their native lands. So if you’re looking to expand your palate and try out some new delicious flavors, here are seven fruits you’ve probably never encountered.

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Ackee

The ackee tree is native to West Africa, and it produces one of the tastiest yet potentially dangerous fruits grown around the world. The fruit itself is visually comparable to a peach on the outside, but on the inside, it contains three fleshy white arils, each with a large black seed. Eating ackee before it’s ripe can induce poisoning, so you need to be careful before consuming it. But a well-ripened ackee fruit is known for having a creamy texture and a mild, nutty flavor, making it an absolute delight.

While the ackee originated in West Africa, it’s now particularly popular in Jamaica. Back in the 1700s, the ackee was brought to the Caribbean aboard ships carrying enslaved people. In the years that followed, the plant thrived in the island’s tropical climate. Ackee is so beloved in Jamaica that it’s a key ingredient in the country’s national dish: ackee and saltfish. In this recipe, ackee is boiled until it looks like scrambled eggs and is then served alongside fried saltfish such as cod or mackerel. The completed dish is garnished with bacon, tomatoes, chiles, or whatever else the eater desires.

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Mangosteen

Mangosteen is a sweet, juicy fruit that’s believed to have originated on the Sunda Islands of the Malay Archipelago. Today, the fruit is eaten throughout all of Southeast Asia and is particularly popular in Vietnam. Each mangosteen is roughly the size of a small orange, and features a hard purple shell on the outside with white fleshy fruit on the inside. It can be eaten fresh, dried, or canned and is often served in fruit salads, as a sorbet, or turned into a syrup or smoothie.

Mangosteen wasn’t introduced to the Western Hemisphere until the mid-19th century. It began to be grown in English greenhouses in 1855 and eventually made its way to the Americas. The fruit became particularly popular throughout Central America and the Caribbean, though it was actually banned in the United States until 2007 due to fears of importing fruit flies. Mangosteen must now be exposed to radiation to sterilize potential pests before it’s brought into the U.S.

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Sapodilla

Cultivated throughout Mexico and Central America, sapodilla is a tan-colored fruit with a roughly textured coating. In much the same way you might determine an avocado’s ripeness, you should make sure a sapodilla feels hard to the touch before eating. In fact, if you eat an unripe sapodilla, the flesh will induce an unpleasant sensation akin to cotton mouth. Once the rind begins to soften, the sapodilla is ready to consume, and it should have a musky and malty flavor similar to molasses.

Sapodillas are often blended into smoothies, served alongside ice cream, or mixed with other fruits to create jams and jellies. Historically, chicle — milky sap from the sapodilla tree — was actually used as chewing gum by the ancient Aztecs. The tree was also cultivated by the Maya, who used its wood for carving; these 1,000-year-old carvings can still be found throughout Maya ruins in the region.

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Kiwano

The kiwano melon is a fruit native to Kenya, Malawi, Sierra Leone, and other parts of Africa that’s known for its striking appearance. On the outside, the fruit has a spiky yellow shell, which explains why it’s been given the moniker “African horned cucumber” in the U.S. On the inside, however, the fruit is full of gooey green flesh and seeds. If eaten when still immature, the flesh of the kiwano is said to taste like a cucumber. But once it’s ripe, the fruit develops flavors reminiscent of melon and kiwi.

The otherworldly appearance of the kiwano melon has also earned it a unique place in American pop culture. The fruit was used as a prop in an episode of Star Trek: Deep Space Nine titled “Time’s Orphan.” In the episode, the kiwano was referred to as a  “Golana melon” and is said to be cultivated on the alien planet of Golana.

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Durian

The durian is one of the most notorious fruits in Southeast Asia, as it’s both beloved for its flavor and reviled for its odor. Each durian has a large spiky shell that protects the creamy and almost custard-like flesh inside. This soft interior is said to taste like a mix of caramel, vanilla, almonds, and even cheese. Durian fans adore the complex flavor profile and will eat it on its own, bake it into cakes and pastries, or serve it up in a smoothie. Some even say durian is best enjoyed when it’s overly ripe, as it develops a texture akin to sour cream.

But when you crack open a durian, you’re also overcome by a pungent aroma that’s been compared to rank garbage or rotten eggs. Because of its powerful and off-putting smell, durian has been banned in many Southeast Asian countries on public transport and in other communal gathering places such as hotels.

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Jackfruit

Jackfruit is the largest tree-borne fruit in the world, weighing anywhere from 10 pounds to a whopping 80 pounds. The fruit is particularly popular in Bangladesh, where it’s considered a staple crop, though it’s also widely popular throughout the rest of Southeast Asia. It takes five to seven years for a jackfruit tree to begin producing fruit, but once it does, it’s likely to produce between 150 and 200 fruits annually. The jackfruit has a spiky rind with a yellowish-green color, and the creamy flesh inside is said to bear a similar texture to an overripe banana.

While jackfruit has been cultivated for thousands of years, it’s become particularly popular in recent years among vegetarians and vegans. When it’s cooked and shredded, jackfruit develops a texture akin to pulled pork, and it’s great at absorbing the flavors of the other foods it’s cooked with, making it a fantastic alternative to meat.

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Monstera Deliciosa

The name monstera deliciosa means exactly what it sounds like — “delicious monster.” The fruit comes from a plant native to Central America that’s also known as the “swiss cheese plant,” as its leaves are riddled with natural holes, resembling swiss cheese. The shell of the fruit looks like an ear of corn, only harder and greener. The fruit inside even resembles the kernels of a corncob — but the flavor isn’t corn-like at all.

If you eat monstera deliciosa too soon before it ripens, you’re bound to have a deeply unpleasant experience. The sour, bitter taste is no friend to your tastebuds, and the oxalic acid can irritate your throat. But that acid dissipates as the fruit ripens, and the flavor becomes more akin to a blend of pineapple and banana. You can tell the fruit is ripe once its outer scales begin to naturally peel. When that happens, throw it in a fruit salad or just eat it on its own for a wonderfully sweet treat.

Bennett Kleinman
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Bennett Kleinman is a New York City-based staff writer for Inbox Studio, and previously contributed to television programs such as "Late Show With David Letterman" and "Impractical Jokers." Bennett is also a devoted New York Yankees and New Jersey Devils fan, and thinks plain seltzer is the best drink ever invented.

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Calvin and Hobbes has captured the hearts and imaginations of readers worldwide since its debut in 1985. Created by Bill Watterson, the beloved comic strip follows the adventures of Calvin, a precocious and mischievous 6-year-old boy, and his sardonic stuffed tiger, Hobbes. Together, they navigate the challenges of childhood and family life, engage in philosophical discussions, and embark on a whimsical array of fantastical journeys.

Watterson’s comic strip extended beyond the realm of typical newspaper comics. With its unique blend of humor, artistry, and profound observations about human nature, Calvin and Hobbes stood out from the crowd. During its 10-year run, it garnered a loyal and dedicated fanbase that continues to grow even decades after its conclusion. Despite its relatively brief lifespan in the world of syndicated comics — Peanuts, for example, ran for half a centuryCalvin and Hobbes left an indelible mark on popular culture, influencing generations of cartoonists and readers alike, and it is often regarded as the last great newspaper comic strip

Here, we dive into some fun facts about Calvin and Hobbes to shed some light on the enduring legacy of this singular comic strip.

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Calvin and Hobbes Were Named After Historical Figures

Calvin and Hobbes were both named after heavyweight historical figures. Calvin was named after John Calvin, the 16th-century theologian and Protestant reformer who was a principal proponent of the idea of predestination. Hobbes, meanwhile, got his name from Thomas Hobbes, a 17th-century philosopher who didn’t have the highest regard for human beings — he famously described human life without governance as “solitary, poor, nasty, brutish, and short.” Watterson was very deliberate in naming his two protagonists, with both monikers reflecting the more complex and philosophical side of Calvin and Hobbes

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The Creator Eschewed Merchandising

In our merch-obsessed world, Calvin and Hobbes was a surprisingly and uncommonly defiant exception to the norm. Watterson strongly resisted the commercialization of his creation, believing it would cheapen the artistic integrity of the strip. So, unlike many popular comic strips (and almost every other beloved brand in modern pop culture), Calvin and Hobbes has no official merchandise beyond the comics and associated books. Watterson famously turned down lucrative licensing deals, including offers for animated adaptations and plush toys, which could have potentially made him hundreds of millions of dollars

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Calvin Has Numerous Alter Egos

Throughout the history of the comic strip, Calvin creates various alter egos for himself. Some of these are generic personas that appear only fleetingly, while others are fully fleshed-out characters who went on to make multiple appearances. Some of the most prominent alter egos include Stupendous Man (a superhero who only ever achieves moral victories), Tracer Bullet (a hard-boiled detective who often comes to the wrong conclusion), and his most iconic alter ego, Spaceman Spiff (a spaceman who flies around the galaxy and achieves some actual victories). Other alter egos included dinosaurs, monsters, Calvin the Bold, Captain Napalm, and The Incredibly Annoying Human Echo. 

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The Inspiration for Hobbes Came From the Author’s Own Cat

The character of Hobbes was at least partially inspired by Watterson’s cat, a gray tabby named Sprite. Sprite provided the long body and facial characteristics of Hobbes, as well as his personality and mannerisms. According to Watterson, Sprite was “good-natured, intelligent, friendly, and enthusiastic in a sneaking-up-and-pouncing sort of way.”

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Hobbes Was a Figment of Calvin’s Imagination — Or Was He?

One of the most fun and intriguing aspects of Calvin and Hobbes is the ambiguous nature of Hobbes’ existence. To Calvin, Hobbes is very much alive — a walking, talking tiger who is his best friend and partner in crime. However, to everyone else in the strip, including Calvin’s parents, Hobbes appears as nothing more than a stuffed toy. The natural assumption, therefore, is that Hobbes is simply an imaginary friend. That, however, is up for debate, and Watterson leaves it up to the reader to decide for themselves. Watterson himself, when asked about Hobbes’ imaginary status, replied, “The strip doesn’t assert that. That’s the assumption that adults make because nobody else sees him, sees Hobbes, in the way that Calvin does … Hobbes is more real than I suspect any kid would dream up.”

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The Final Farewell Strip Has a Fittingly Uplifting Ending

The final Calvin and Hobbes strip was published on December 31, 1995. After a decade, Watterson decided it was time to bring the comic to a conclusion, even though the comic was still at the height of its popularity. The last-ever strip shows Calvin and Hobbes walking across a snowy landscape, at which point Calvin declares, “It’s a magical world, Hobbes, ol’ buddy … Let’s go exploring!” The two friends then ride away on their sled, into their joyous wintry world. The inspiring ending reinforced the comic strip’s central message that the world is a magical place with plenty to discover and explore, as long as we embrace imagination and our sense of adventure.

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Interesting Facts writers have been seen in Popular Mechanics, Mental Floss, A+E Networks, and more. They’re fascinated by history, science, food, culture, and the world around them.

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The Andy Griffith Show is one of the most beloved sitcoms ever to be broadcast into our living rooms. The series ran for 249 episodes over eight seasons, starring the iconic Andy Griffith as Sheriff Andy Taylor, Frances Bavier as his Aunt Bee Taylor, Don Knotts as the oafish Deputy Barney Fife, and a young Ron Howard as Andy’s son Opie. Today, this TV classic is considered not just one of the greatest shows of the 1960s, but of all time. But despite the show’s enduring popularity, there are still a few interesting tidbits that may surprise even the most avid fans. Here are five fun facts about The Andy Griffith Show.

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Don Knotts Wasn’t in the Original Cast

The pilot episode of The Andy Griffith Show was originally broadcast as an episode of The Danny Thomas Show, a sitcom that ran from 1953 to 1964. The pilot featured appearances from Griffith, Bavier, and Howard, but Knotts’ Barney Fife was notably missing. In fact, Knotts was sitting at home watching television when he saw the pilot starring his friend Andy. According to Griffith, Knotts called up after the episode aired and said, “Andy, you’re going to be a sheriff, you’ll need yourself a deputy.” Just like that, the character of Barney Fife was born.

Interestingly enough, rumor has it Knotts was only initially offered a one-episode contract. However, after witnessing the on-screen chemistry between the two friends, executive producer Sheldon Leonard changed his mind and offered Knotts a series regular contract. Knotts went on to portray Fife throughout the first five seasons of the show before leaving to explore new career opportunities, though he reprised his role as Fife in later projects.

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The Theme Song Has Lyrics

Each episode of The Andy Griffith Show opens with that iconic sequence of Andy and Opie carrying their fishing poles down to the river. This is soundtracked by a catchy little ditty whistled by the composer Earle Hagen. Hagen, along with his writing partner Herbert Spencer, wrote the theme song without having any idea how popular it would become. In fact, the song was so beloved it was later given a title and lyrics.

In 1961, actor Everett Sloane — who later appeared on the show as Jubal Foster in 1962 — orchestrated an expanded version of the tune with lyrics, and the song was named “The Fishin’ Hole.” Shortly after, Capitol Records released a mass-produced record of the tune featuring Andy Griffith on vocals. The song featured the lines: “We may not get a bite all day, but don’t you rush away / What a great place to rest your bones and mighty fine for skippin’ stones / You’ll feel fresh as a lemonade, a-settin’ in the shade / Whether it’s hot, whether it’s cool, oh what a spot for whistlin’ like a fool / What a fine day to take a stroll and wander by the fishin’ hole.”

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The Setting Was Based on Griffith’s Hometown

While the fictional town of Mayberry, North Carolina, was created exclusively for the show, it was inspired by Andy Griffith’s birthplace of Mount Airy, North Carolina. In fact, people and places in and around Mount Airy were frequently referenced within the fictional world of The Andy Griffith Show. Take for example the fictional town of Mount Pilot, which was located near Mayberry in the show. Its name was taken from the very real town of Pilot Mountain, which is located about 12 miles down the road from the real-life Mount Airy.

Today, the residents of Mount Airy have embraced this legacy and transformed the town into a must-see destination for fans of the series. Locations from the show that were once entirely fictional have been transformed into real-life institutions, such as Floyd’s City Barber Shop and the Old Mayberry Jail. Visitors can even take a squad car tour in a vintage police cruiser just like Sheriff Taylor drove or pop into the Andy Griffith Museum to check out some memorabilia from the show.

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It Was the No. 1 Rated Show When It Ended

TV shows have a tendency to overstay their welcome and end up becoming less popular in later seasons. But this fate didn’t befall The Andy Griffith Show, which is one of only three shows in history to end its run at the top of the Nielsen ratings charts, a feat it shares with I Love Lucy and Seinfeld.

During its entire eight-season run, The Andy Griffith Show maintained a top-seven spot in the ratings, even during later seasons after the beloved Don Knotts left the program. When the final episode aired on April 1, 1968, The Andy Griffith Show was sitting firmly in the No. 1 spot on the charts. In fact, during its final season, the show was viewed by an estimated audience of around 15.6 million viewers, beating out The Lucy Show; Gomer Pyle, U.S.M.C. (an Andy Griffith spin-off); and Gunsmoke, as well as every other program on television at the time.

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One Spin-off Ran for Three Seasons

Although The Andy Griffith Show came to a close in 1968, it wasn’t the last we saw of those characters. During the show’s final season, producers began work on a spin-off called Mayberry R.F.D. (Rural Free Delivery). In fact, The Andy Griffith Show introduced new characters such as Sam Jones and his son Mike during its final season, with the idea that they’d become the main focus of Mayberry R.F.D. The final episode of The Andy Griffith Show was even titled “Mayberry R.F.D.,” serving as the de facto pilot for the new spin-off.

With Griffith staying on as executive producer and appearing in a few early episodes, Mayberry R.F.D. first hit the air in 1968. The inaugural episode — titled “Andy and Helen Get Married” — featured appearances by Griffith, Knotts, and Howard. It went on to enjoy a 78-episode run over the course of three seasons before the series finale aired in 1971. But that still wasn’t all: A made-for-TV reunion movie called Return to Mayberry was produced in 1986. Sixteen original Andy Griffith cast members reprised their roles for the movie, which centers on Andy Taylor as he returns home to visit his son Opie and help his friend Barney Fife run for sheriff.

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Interesting Facts writers have been seen in Popular Mechanics, Mental Floss, A+E Networks, and more. They’re fascinated by history, science, food, culture, and the world around them.