Dressed in a nappy, 10-month-old April chews her cot
When they are a year old they will be moved to the infant development unit, where the animals are taught how to survive in the wild.
A dedicated team of seven nurses care for the creatures, headed by one of Malaysia's most experienced vets.

The orang-utans get all the comforts of a hospital, including nappy changes, left, and even cuddles, right