Some critically endangered animals are on the list.

The skull changed shape in different ways than the brain during evolution, according to a new comparative study.

The status of the mountain gorilla is now endangered, an upgrade from critically endangered. Other species are becoming more threatened.

The primate was famous for her ability to communicate with humans.

Colo, the oldest zoo gorilla and the first born in captivity, died on January 17 at age 60.

A strain of HIV that has afflicted more than 100,000 people emerged from gorillas.

What researchers are learning as they sequence, map, and decode species’ genomes

Chimpanzees, bonobos, and gorillas harbor more microbial diversity in their guts than do humans, a study shows.

A round-up of recent discoveries in behavior research