The diversity of orangutans extends even further—into differences whose origins continue to resist scientific understanding. From his perch high in the rain forest canopy of Sumatra, a big male ...

In a statement, Zoo Atlanta said that at 39, Chantek was one of the oldest male orangutans in North American zoos. His cause of death was not yet known, it said, but vets had been treating him for ...

There are two different types of adult male orang-utan: flanged and unflanged. Flanged males have prominent cheek pads called flanges and a throat sac used to make loud verbalizations called 'long ...

This is Otto, an adult flanged male orangutan, avoiding fires and traveling through a smoke-filled forest in the Tuanan Orangutan Research Station in Indonesian Borneo. Disclaimer: AAAS and ...

"The San Diego Zoo family is devastated to learn of the death of male orangutan Satu. The much-loved monkey was under veterinary treatment for a severe illness, with preliminary post-mortem tests ...

An orangutan has been seen treating a wound using a plant with known pain-relieving properties, marking the first known ...

Here’s a question for you: how do you film a large, dominant, and allegedly aggressive male orangutan in thick, murky peat swamp forest, where humans get tangled and bogged down, and visibility ...

There's also a moving conclusion to the story of Zorro, a huge male orangutan who spent 13 years in a tiny cage before being released on to a forested island.

They believe he was injured fighting with rival male orangutans because he made loud cries called "long calls" in the days before they saw the wound. The team then saw Rakus chewing the stem and ...