extinction

Their ability to survive and spread in the aftermath of the dinosaur extinction makes them a key group for understanding how reptiles adapted during a period of dramatic environmental change.

Over a third of ray and shark species are threatened with extinction, largely due to overfishing, according to the International Union for the Conservation of Nature.

The reforms, approved by parliament late Thursday night, will create an independent environmental regulator and stricter rules for land clearing -- a leading cause of native animal extinctions.

Science fiction bursts at the seams with bizarre extinction scenarios, usually delivered from space, like the one that precipitates Carol’s irritating life turn.

They suggest that this protective feature may have helped ancient bryophytes, the plant group that includes mosses, move from water to land roughly 500 million years ago and survive repeated mass extinctions.