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Fancy Fish The ocean is home to many glowing creatures, like this pinecone fish. Some sea creatures use their lights to catch food. Some use their lights to confuse predators. Others light up to attract mates.

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Bright Bobtail Many animals make their own light. Others, like this bobtail squid, get their light from glowing bacteria. The bacteria live inside the squid. The squid makes food for the bacteria. In return, the bacteria lights up the squid.

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Flashy Flier You may have seen fireflies over the summer. Here, thousands of fireflies make this tree look like it is decorated for the holidays. The fireflies use the flashing green light, in the rear of their bodies, to attract mates.

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