A stunning fossil discovery in the Grand Canyon has opened a new window into one of the most fascinating chapters in Earth’s ...

Sometime before 520 million years ago, animal life began to flourish as never before. The small shells, worms and even sponge ...

Scientists at MIT have uncovered compelling evidence that ancient sea sponges were Earth's first animals. Chemical fossils ...

Earth is far from a static place. That's true in the present, but it's even more apparent when you look to the past, as Earth has changes quite a bit over time.

Chemical fossils from 635-million-year-old rocks suggest sponges were among Earth’s first animals, reshaping the story of early life.

Chemical fossils are remnants of biomolecules from organisms long extinct but preserved in sediment over hundreds of millions of years.