Once found in the jungles of Africa, researchers in South America have now discovered links tying these extinct primates to the continent—painting an incredible story of survival against the odds.

My team’s new study may help solve the evolutionary mystery, revealing how a vane on the tip of their tails may have helped ...

WASHINGTON — Nearly a quarter of animals living in rivers, lakes and other freshwater sources are threatened with extinction, according to new research published Wednesday. “Huge rivers like ...

While many of Earth’s earliest life forms have long since gone extinct, some animals have stood the test ... Originating in the Eocene epoch, tapirs have undergone relatively little change ...

when the dinosaurs went extinct, prehistoric mammals began to develop and emerge. During the Eocene Epoch, which spanned ...

WASHINGTON (AP) — Nearly a quarter of animals living in rivers, lakes and other freshwater sources are threatened with extinction, according to new research published Wednesday. “Huge rivers ...