Prehistoric animals are often pictured as distant fossils, yet a surprising number of species still walk, swim, and crawl across Earth with body plans that echo deep time. Strictly speaking, ...

Tiny creatures that lived in the dark—either underground or below the sea floor—were the dominant life forms on Earth for much of the planet's history, a study suggests.

"This is the story of Earth like you’ve never seen it before—from the first spark of life to prehistoric monsters to the rise of humans… and all the weird stuff in between." We live on a magnificently ...

How the present reveals the past -- Ice age (0-1.8 million years ago) -- Life's third age (1.8-65 million years ago) -- Life's middle age (65-205 million years ago) -- Life's extinction events -- Life ...