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

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 ...

In common marmosets, the brain regions that process social interactions develop very slowly, extending until early adulthood, like in humans. During this time, all group members are involved in ...

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, ...

“The only behavior in the great ape repertoire that fulfills the same form, function, and context as kissing is the last step ...

Researchers from the University of Otago provide arguably the world’s most clear-cut case of animal evolution in response to change made by humans. They found the stonefly taking a different ...

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 ...

Human-driven extinctions have erased significant bird species and functional diversity, erasing 3 billion years of evolution and severely impacting ecosystem health, emphasizing the need for urgent ...