The rhesus macaque monkeys that escaped a South Carolina medical lab this week are among the most studied animals on the planet ...

Study co-author Christen Lin added that while one might not expect a chimp to care if another species watches them performing ...

Complicated births may not have arisen in humans as a trade-off between our need for big brains and pelvises suitable for ...

NPR's Ailsa Chang talks with Regina Barber and Emily Kwong of Short Wave about the oldest known tadpole, new proofs of the Pythagorean Theorem, and the evolutionary roots of alcohol consumption.

In romantic movies, kissing often symbolizes love, yet this simple act of pressing lips together has peculiar origins.

Most of us do it, be it romantic, familial, friendly or formal, but kissing among humans and where and how it originated is ...

But in that short time, we’ve discovered about two dozen species of human ancestors in Europe, Africa, and Asia—which you can see mapped out in the infographic below. The first known fossils of human ...

Researchers have uncovered how social interactions influence brain development in common marmosets, drawing parallels with ...

The development of primate brains is shaped by various inputs. However, these inputs differ between independent breeders, ...

If ancestral apes practiced grooming in this way, it would have been a core part of early human culture. As humans evolved and body hair reduced, the need for intensive grooming decreased ...