New research finds extinction rates have been declining for a century, challenging assumptions of an ongoing mass extinction.

The nation's deadly flooding was an "extinction-level disturbance" for the world's rarest great ape, the tapanuli orang utan that cau­sed catastrophic damage to its habitat and survival prospects, ...

Humans have wiped out hundreds of species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass extinction” event ...

The Late Devonian represents a critical interval in Earth’s history, marked by a profound restructuring of marine biodiversity and a series of mass extinction events. This period witnessed extensive ...

(via Astrum) The future of NASA is changing. A proposed budget cut, the largest in the space program’s history, threatens to cancel missions and gut decades of progress. What happens when the world's ...