Biodiversity

An analysis of the fossil record shows that coral reefs are most often responsible for the diversity of sea life

Overhunting by Clovis people over centuries, not a catastrophic impact, may have wiped out North American mammoths and other megafauna, researchers say

Chance disaster as a bigger extinction threat than once thought

Habitat loss, hunting and other threats are driving our closest animal relatives to the brink

Noise from human activity threatens an animal's reproductive success

Eating wildlife is an important part of feeding the world's poorest people. But will it drive extinction?

A repopulation plan for endangered amphibians

Researchers transfer DNA from the long-vanished Tasmanian tiger into a mouse

Humans' love for rare objects could cause conservation efforts to backfire and force species disappearance

A new understanding of how species become extinct suggests how to preserve them--and at a cost that doesn't break the bank