Between the ages of three and seven years, the young animals leave them gradually. The females stay longer with their mother than the males. Orangutan kids are skillful and inventive in all matters of play, and they learn very fast and well. Evening to evening, when orangutans become tired, they climb into the treetops, and first build a nest. Each night in a different place.
Orangutans often build their nests in places where they have a good view of the surrounding forest.