Primates

More than half of the species in five mammal groups went extinct in Africa about 34 million years ago, scientists recently discovered.

Leprosy, a disease that was previously unknown in non-human primates in the wild, has been detected in two unconnected populations of chimpanzees in West Africa.

It's often assumed that birds are the only animals that sing. But these other divas of the animal kingdom prove otherwise.

In a new analysis, researchers compared hundreds of such cases across primate species.

Humans aren't the only species that show "hello" and "goodbye" behaviors.

Researchers have documented chimpanzees killing gorillas for the first time. The two fatal attacks were caught on film at a national park in Gabon, Central Africa.

The chimp community's initial reactions to the infant were "unusual."

When human cases of this virus occur, they are often deadly.

Massive lemurs once clung to Madagascar's trees. Scientists recently sequenced the nuclear genome of one extinct giant, the koala lemur, for the first time.

Some animals lead quiet lives, while others prefer constant chatter. Why do some animals vocalize more than others, and what are they saying?