Science Common Sense

69 - Why do some animals glow in the dark?

Some animals have a special power called bioluminescence, which means they can make their own light. This is usually due to special chemicals inside their bodies that react and produce light when mixed with oxygen.

Imagine having a tiny light bulb inside your body that you can turn on and off. It's kind of like that.

This is helpful for some animals because it helps them to communicate, find food, or even scare away predators. Some examples of animals that glow in the dark include fireflies, glowworms, and certain types of fish.