Orphaned and injured orangutans are cared for at the world's oldest orangutan sanctuary in Borneo.
The orangutans go through training to learn how to climb and build nests.
One orphan gets help from a friend to settle in at the orangutan sanctuary.
The orangutans steal food at every opportunity.
The staff prepares for the birth of a new baby orangutan at the sanctuary.
A young orangutan resists climbing, and an older male requires an x-ray.
The orangutans must learn to find food for themselves.
The staff investigates a wild male spotted outside the reserve.
There's a baby boom at the sanctuary, and paternity tests are in order.