14 October 2010, 03:30 AM ET
Since we're related to lemurs, findings suggest reasons why humans play, too.
29 September 2010, 12:32 PM ET
They recognize themselves in the mirror.
16 September 2010, 07:00 AM ET
A neuroscientist studies how humans and primates sense inequality.
18 August 2010, 09:09 AM ET
A male chimp with paralyzed hands invents a back-scratching method using a liana, or woody vine. Other chimps in the Uganda community learn the method too.
12 August 2010, 09:49 AM ET
Researchers have discovered particular brain regions are associated with developing childhood anxiety.
05 August 2010, 09:45 AM ET
A new robot moves efficiently like human rock climbers or apes swinging through trees.
30 July 2010, 05:44 AM ET
The monkeys either mistook the squirrels as a predatory bird or they wanted to flaunt their prowess.
22 July 2010, 04:03 AM ET
A female monkey at the London Zoo has taken a liking to her neighbor's baby
19 July 2010, 02:34 AM ET
Some guys respond to competition as bonobos would, others like chimpanzees.
13 July 2010, 12:59 PM ET
The play-fighting among gorillas helps the apes learn how to deal with real conflict.
12 July 2010, 09:11 AM ET
Watching human baby brains grow is a little like watching evolution in action
08 July 2010, 10:13 AM ET
Margay wild cats emit sounds like tamarin monkey babies
22 June 2010, 06:24 AM ET
Roadmap to protect chimps from hunting, habitat loss and disease.
21 June 2010, 06:01 AM ET
Chimp-on-chimp attacks could be motivated by chimpanzees' desire to gain new territory from rival chimps.
10 May 2010, 12:20 PM ET
A newly discovered primate that lived in Africa some 37 million years ago doesn't fit into primate groups thought to be around at the time.
04 May 2010, 06:01 AM ET
Detective mice were enlisted by scientists to figure out how baboons rely on body odor.
26 April 2010, 07:07 AM ET
Chimpanzees may gather in hushed quiet to watch a fellow ape in her dying moments, and chimp mothers in the wild may carry their infants' mummified remains for weeks.
23 April 2010, 06:13 AM ET
Primatologists Brain Hare thinks humans can learn a thing or two from bonobos. One of his recent studies found these apes enjoy sharing, while chimps don't
05 March 2010, 02:11 AM ET
Infant monkeys born to heavier moms are more confident and playful than their counterparts born to less experienced and lighter mothers.
12 February 2010, 11:16 AM ET
Most of us can understand how we feel if someone else gets a better reward for doing the exact same work we did. Researchers are studying how these feelings of inequity evolved and if primates have the same sense of inequity.
02 February 2010, 05:37 AM ET
While chimps grow out of their generous behaviors, bonobos continue to share into adulthood.
27 January 2010, 03:33 AM ET
Dramatic geological events may have driven the origin of primates.
21 December 2009, 04:39 AM ET
A chimp's capability to understand flames provides clues to how our distant ancestors first learned to control fire.
16 December 2009, 10:13 AM ET
Scientists have captured video of the world's rarest great ape.
14 December 2009, 07:02 AM ET
From crows that craft twigs into usable objects to elephants that morph tree branches into fly swatters, the animal kingdom is full of adept tool makers.
28 November 2009, 04:21 AM ET
An experiment finds that chimps may have a sense of musical rhythm.
11 November 2009, 08:13 AM ET
A gene found in brain cells could explain how we acquired speech.
11 November 2009, 07:54 AM ET
Why did we start using tools? What do other tool users in our family tree say about our early evolution?
11 November 2009, 07:01 AM ET
A rare monkey may have mated with baboons in the past.
04 November 2009, 11:24 AM ET
Chimpanzees offer many clues as to how we evolved our human traits.
16 October 2009, 05:51 AM ET
Primate communication systems shed light on the origins of language and music.
08 October 2009, 08:09 AM ET
The mother-child bond may have roots in other primates.
16 September 2009, 09:15 AM ET
After successful gene therapy, this male squirrel monkey that was once colorblind can now pick out red dots from the grey background. When the monkey correctly noses the red patch, a positive tone sounds and the monkey gets a drop of juice.
16 September 2009, 09:00 AM ET
Gene therapy has given two color-blind monkeys the ability to see red.
15 September 2009, 05:08 PM ET
It doesn't even take a real chimp to pass on the yawning bug.
15 September 2009, 07:44 AM ET
Dolphins and some non-human primates rival humans in cognitive abilities.