The amazing survival strategies of polar marine creatures might help to explain how the first animals on Earth could have evolved earlier than the oldest fossils suggest, according to new research.

When picturing the earliest animals on Earth, most people imagine ancient fish or tiny marine creatures drifting through prehistoric seas. But new research has revealed a far more humble origin story ...

Chemical signatures in ancient rocks point to precursors of squishy sea creatures. After studying rocks more than 541 million years old, MIT scientists have found new evidence that some of Earth’s ...

Life on Earth started in the oceans. Sometime around 475 million years ago, plants began making their way from the water onto the land, and it took another 100 million years for the first animals with ...