No, we're not quite at the point where baboons can tackle calculus or trigonometry, but they do show an ability to count that's at least as good as that of a human child, as this video from the University of Rochester reveals.

Scientists have discovered that two tiny, clawless, tree-living lemur species hibernate. Underground. For up to six months a year. Given that the furry animals are primates, the findings have exciting implications for possible human hibernation.

Sociological studies have found that middle managers tend to be more stressed than either their bosses or their underlings. That phenomenon might well be true of all primates, as macaques display heightened stress levels when they are in the middle of their social hierarchy.

It's not every day that scientists identify a brand new species of mammal. Rarer still is a confirmed discovery of a new species of primate — the mammalian order that encompasses humans, monkeys and apes. Now, for only the second time in 28 years, a new species of monkey has been identified in Africa.

Granny Jane, a gibbon at England's Twycross Zoo, is probably at least a decade older than any of her counterparts in the wild. What's the secret to her longevity? According to her keepers, the secret is simply being chilled out.

Orangutans spend their lives swinging in trees and eating fruit. Neither of those things is all that surprising for small animals that don't need tons of energy — but it's distinctly weird for such large primates to live that way.

Parents often change their speech when talking to babies, simplifying their sentences and altering the words and noises they make to sound - and this is a technical term here - "more adorable." Turns out we're not the only ones.

When a chimpanzee goes to sleep, it first has to build a "nest", which allows it to sleep safely up in the trees. Strangely, chimpanzees also build nests when sleeping on the ground, which might reveal a secret about human evolution.

There are four genetically distinct chimpanzee populations, all found in two relatively small regions of Africa. And yet these populations, which are sometimes less than a mile apart, are more genetically diverse than humans that live on different continents.

Bonobos are famous as one of the relatively few species that has sex simply for pleasure. But just because our primate cousins aren't reproducing doesn't mean they're only having fun — as revealed by a new study of bonobo lesbian relationships.