Human actions, such as incidental fishing and ineffective policies, push one-third of shark populations toward extinction.

Extinction rates today are hundreds—perhaps thousands ... One way to think of a species, be it of ape or of ant, is as an answer to a puzzle: how to live on planet Earth.

Data shows that while retention bans are a positive first step, they alone won’t be sufficient to stop the ongoing decline.

Two of Earth's largest mass extinction events were likely triggered by the fallout from two supernovae in nearby space. This ...

As Earth's ever-present celestial companion, the moon exerts a constant influence on our planet, and its disappearance would ...

A comprehensive study of U.S. butterfly populations shows dramatic declines in most species, but Pacific Northwest ecologists ...