Analysis of fossils recovered in the 1990s in Greece supports the idea that the apes and ancestors of humans evolved in Europe.

Giraffe ancestors had shorter necks. Why that changed so drastically over their evolution has stirred a surprising amount of debate since the time of Charles Darwin. While a recent theory suggests ...

But in the savannas of Africa, giraffe populations have plummeted — so much so that the U.S. government is moving to add many of these long-necked mammals to its official list of imperiled species.