Shell-rich rocks trace a mostly upward climb in ocean life, with each mass extinction slashing both diversity and biomass ...

In a first-of-its-kind study, Stanford researchers have measured how the abundance of ocean life has changed over the past ...

Stanford study shows ocean biomass has risen over 540 million years, linking biodiversity to long-term ecosystem health.

Humans have driven sharks and their cousins to the brink of extinction. The health of the entire ocean is at stake.

A study of fossils from the Permian-Triassic extinction event 252 million years ago shows that forests in many parts of the ...

As climate change threatens tropical forests, a new study shows how the loss of those forests can be devastating to life on ...

July 4, 2025. More for You ...

The Cretaceous-Paleogene mass extinction, occurring approximately 66 million years ago, represents one of the most dramatic biotic crises in Earth’s history. It is marked by the abrupt ...

Not everything dies in a mass extinction. Sea life recovered in different and surprising ways after the asteroid strike 66 million years ago. Ancient fossils recorded it all.