Tempted by the fruit of a strangler fig, a Bornean orangutan climbs 100 feet into the canopy. With males weighing as much as 200 pounds, orangutans are the world’s largest tree-dwelling animals.

Biological anthropologist Cheryl Knott and photojournalist Tim Laman have dedicated their lives to the orangutans of Borneo’s Gunung Palung National Park. Together with their children ...

Ten years ago, I set off for Borneo to study orangutans. I knew how closely related they were to humans, but when I actually experienced the orangutans first hand, I found the similarities ...

Orangutans are the only great apes in Asia, making their homes on the islands of Borneo and Sumatra in the Malay archipelago. Orangutans are arboreal, meaning they primarily live in the trees.

Bornean orangutan Kyle climbs a web made of recycled fire hose in the Great Ape House’s outdoor habitat. Connor Mallon, Smithsonian’s National Zoo and Conservation Biology Institute.

It said the birth had been "exciting news" for the zoo as Bornean orangutans were a critically endangered species. Keeper Georgina Barnes said the family had since been seen "cuddling up together".

Vandu and Raba are two Bornean Orangutans that have spent most of their lives in captivity at the Hong Kong Zoological and Botanical Gardens, a glaring juxtaposition from the their relatives in ...