Rapid development has been shrinking the jungle habitat of the critically endangered species, and fatal conflicts with people have been increasing.

After a two-year wait, video of a young male crossing above a road gives hope that critically endangered species can survive habitat fragmentation ...

Great apes, humans' closest relatives, are nearing extinction and people should fear losing the biological knowledge that would die along with them, a primatologist says.

Indonesia’s deadliest floods in decades have pushed the world’s rarest great ape closer to extinction, as scientists warn that vast swathes of forest critical to the survival of the Tapanuli orangutan ...

A young Sumatran orangutan provided a rare glimmer of hope for one of the world’s most endangered species. Conservationists ...

everal Sumatran orangutans in Langkat regency, North Sumatra, among hundreds threatened with extinction because of conflicts ...

Add Yahoo as a preferred source to see more of our stories on Google. On Monday, April 27, conservationists shared footage showing a Sumatran orangutan using a human-made canopy bridge to cross a ...