31 January 2011, 07:54 AM ET
Uh-oh. Chimps know what their competitors are thinking.
26 January 2011, 05:58 AM ET
The sequenced female revealed her genes evolved more slowly than those of chimps and humans.
16 December 2010, 10:30 AM ET
Humans may be smarter than our primate cousins, but research has shown their immune systems may trump ours, in some ways.
23 November 2010, 07:33 AM ET
Missing since 1970s, new colony revealed.
15 November 2010, 09:14 AM ET
Slower development may have given humans the evolutionary edge over Neanderthals
01 November 2010, 12:00 PM ET
Conservationists say one in four mammals faces extinction.
27 October 2010, 07:00 AM ET
Controversial find suggests we came from Asia, not Africa.
26 October 2010, 12:59 PM ET
New species is already critically endangered.
15 October 2010, 07:32 AM ET
A neurobiologist tackles the question of whether humans are more than just ape relatives with bigger brains.
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.