This article was originally on a blog post platform and may be missing photos, graphics or links. See About archive blog posts. For the last six months, three orangutans at the Milwaukee County Zoo ...

Humans, chimpanzees, gorillas, and orangutans (from left to right) have differently shaped endocasts and brains (see top row). But they share an asymmetry pattern, as visualized in the bottom row.

Don’t try this at home, but tickling a gorilla, orangutan, bonobo or chimp can inspire bursts of grunting sounds. Yes, that’s laughter, says Marina Davila Ross of the University of Portsmouth in ...

At first glance, a video of an orangutan imitating a trainer’s grunts may not seem incredibly significant. But primate researchers say Rocky, the 11-year-old orangutan in the video, could ...

Comprehensive reference genomes have now been assembled for six ape species: siamang (a Southeast Asian gibbon), Sumatran orangutan, Bornean orangutan, gorilla, bonobo and chimpanzee. Areas of their ...

WASHINGTON (Reuters) - Chimpanzees and humans split from a common ancestor just 4 million years ago -- a much shorter time than current estimates of 5 million to 7 million years ago, according to a ...

A new study, certain to be controversial, maintains that chimpanzees and humans split from a common ancestor just 4 million years ago — a much shorter time than current estimates of 5 million to 7 ...