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 ...

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.

Engaging with timber companies: WWF is working with companies to mitigate the negative impacts of logging and timber plantations on habitats and orangutan populations. For example, studies show that ...

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.

Categorised as “critically endangered” by the International Union for Conservation of Nature (IUCN), the population of Borneo orangutans is estimated to be 104,700 due to loss of habitat ...