Dr. Ani Permana, department of psychology, University of Warwick, lead author of the paper said, "Nest-building is critical to survival in orangutans but is surprisingly not the focus of a lot of ...

By observing orangutans for long durations over many years, the research group managed to show that young orangutans peered at (deliberately watched) their mothers making nests to learn how to do it.

“Orangutan nest-building tendency may have some innate basis, but the details and method must be socially learned starting from a very young age by watching and practicing, learning from mistakes as ...