Mystery of largest-ever primate's disappearance finally solved
The extinct great ape grew to an estimated height of around 10 feet and may have weighed roughly 440-600 pounds.
Orangutans filmed harvesting seeds from giant sunflower in viral video
"This was the best post I've seen online in so long!" wrote a viewer under the clip with almost 24,000 likes.
Orangutans can beatbox, scientists discover
It turns out that our orangutan cousins can make two noises with their voices at once, in a similar way to human beatboxers.
Astonished Zoo Fans Watch Live Birth of Baby Ape
Astonished wildlife fans watched the live birth of a baby orangutan in a once-in-a-lifetime moment at a zoo's special enclosure.
Watch Zookeeper Introduce Her New Baby to Orangutans in Adorable Video
Kansas City Zoo said its 45-year-old orangutan called Jill was "immediately enchanted" by the baby.
Human Evolution Has Slowed in the Last Million Years
The results could have important implications for understanding when humans and other great apes diverged in evolutionary terms.
Dolphins' Teeth Removed To Make Tourists Safer
A disturbing new report shines a light on animal cruelty in the tourist entertainment industry.
Video Shows Orangutan Smoking Cigarette in 'Death Zoo'
Some refer to the zoo as a "death zoo" because of reportedly unsanitary conditions and alarming treatment.
Orangutan at Dutch Zoo to Use Tinder For Apes
Behavioural biologists hope to gain insight into what orangutans look for in a partner.
Wildlife Photographer of the Year Announced
Photojournalist Tim Laman is calling for the preservation of Bornean orangutans.
Orangutan Mimics Humans, Offering Insight Into Speech
'Voice control shown by humans could derive from an evolutionary ancestor with similar voice control capacities as those found in orangutans,' researcher says.
Meet Ken, San Diego's Hairiest Escape Artist
The strange tale of Ken Allen, an orangutan on a mission.
Orangutan Population More Than Double Previous Estimate
Sumatran orangutans remain critically endangered, but their numbers are higher than thought.