The next time you go wild swimming, whether in a lake, river or sea, you are probably sharing the water with one of your tiniest, yet closest relatives. Subscribe to our newsletter for the latest ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Paleontologists have revealed the fossilized remains of a curious creature that is not only one of Earth's oldest animals ...

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Prefer Newsweek on Google to see more of our trusted coverage when you search. The phenomenon of bioluminescence first evolved in animals at least 540 million years ago, a new study has discovered.