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.

A quarter of the skulls traded came from legally protected species, including critically endangered Bornean orangutans (Pongo pygmaeus), gibbons (genus Hylobates), and endangered proboscis monkeys ...

More recently, archaeologists discovered a skull fragment and a tooth ... "Our research programme has identified 74 orangutans living within the vicinity of Borneo Rainforest Lodge," says Farah.

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 ...

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 ...