Marmosets Have Conversations That Sound Strikingly Human

Marmosets are fluffy, 8-inch-long monkeys native to South America. They are also very polite. New research shows that these little mammals carry on lengthy, back-and-forth discussions without interrupting one another. This is a conversation style adopted by only one other kind of primate: humans. » 10/17/13 12:10pm 10/17/13 12:10pm

We are now accidentally making monkeys dumber

The use of stone tools is incredibly rare, so much so that it was once thought to be the exclusive domain of humans and our ancestors. Fellow apes like chimpanzees and baboons have since been proven to use stones as tools, but only a couple non-ape primates are known to do it. But now human encroachment might rob one… » 8/18/13 4:30pm 8/18/13 4:30pm

Monkeys want to fit in just as much as humans do

Humans are known to change their behavior to fit in — particularly when interacting with an unfamiliar culture — but it wasn't known whether this fickleness was an evolved survival instinct or one of the quirky byproducts of our intelligence. Well, based on the behavior of male vervet monkeys, it appears the tendency… » 4/28/13 11:00am 4/28/13 11:00am

Gelada monkey's yodel-like gurgling could reveal origins of human speech

As a group, primates aren't really known for their ability to create vocalizations, or sophisticated or complex sounds with their mouths. Yes, we humans have shown some talent in that area — what with the whole development of language and all that — but most apes and monkeys are unable to generate anything but the… » 4/14/13 1:00pm 4/14/13 1:00pm

Monkeys of various ranks like to have sex with each other — but only when no one’s looking

Life is tough for male and female macaques monkeys - especially when they're horny. Like many primate species, their sex life is right out there in the open for everyone to see, including alpha males and alpha females who do their darndest to prevent low ranking monkeys from having sex with each other. And indeed, as… » 10/31/12 1:13pm 10/31/12 1:13pm