We’ve all heard of lions, tigers, and bears — but what about axolotls, quokkas, and narwhals? We’ve collected the ultimate ...

Scientists have uncovered a surprising genetic shift that may explain how animals with backbones—from fish and frogs to humans—became so complex. By comparing sea squirts, lampreys, and frogs, ...

This article was supported by readers like you. Our mission is to provide accurate, engaging news of science to the public. That mission has never been more important than it is today. As a nonprofit ...

WASHINGTON - In the cold waters of the Arctic, a denizen of the deep lurked for centuries. Now, scientists calculate that this female Greenland shark was the Earth's oldest living animal with a ...