There’s a beach in the Maldives that glows in the dark.

If you were wowed by those glow-in-the-dark stars on your bedroom ceiling as a kid, you may need to book a trip to the Maldives. The small nation of more than 1,000 islands in the Indian Ocean is home to at least one beach, on Mudhdhoo Island, that often glows in the dark — and it’s a completely natural phenomenon. We have ostracod crustaceans (aka seed shrimp) to thank for the effect, as the millimeter-long creatures have the ability to emit a blue light for as long as a minute or more. Though scientists are unsure why they do so, some believe it happens when a “mass mortality” event occurs. 

The Maldives is the lowest country in the world.

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There isn’t a single spot in the Maldives with an elevation of more than 10 feet above sea level, and 80% of its land area is below 3.3 feet.

That gorgeous seed shrimp glow is an example of bioluminescence — light produced by a chemical reaction within a living being. Seed shrimp are far from the only creatures who shine this way: The chemical reactions that create bioluminescence occur in other organisms whose bodies contain luciferin (light-emitting organic compounds; the name comes from the Latin “lucifer,” meaning “light-bearing”). That list also includes fellow ocean-dwellers such as firefly squid and sea sparkles, as well as fireflies, glow-worms, and certain bacteria and fungi on land. Some animals do it to lure their next meal, others as a kind of mating ritual, and still others use it to frighten, distract, or hide from predators. Good thing sharks and bats don’t find the sight as wonderful as we do.

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