With their bright red, hairless chests and grass-grazing lifestyle, gelada monkeys are quite unusual. They are the only primate, other than humans, to primarily live on land instead of in trees, and a ...

If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have ...

Lead exposure may have spelled evolutionary success for humans—and extinction for our ancient cousins—but other scientists ...

When you learned about the history of human evolution in school, there's a good chance you were shown one all-too-familiar image. That picture probably showed a conga line of human-like creatures, ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The 43 rhesus macaque monkeys that escaped a ...

The 43 rhesus macaque monkeys that escaped a South Carolina medical lab this week are among the most studied animals on the planet. And for more than a century, they have held a mirror to humanity, ...