This young bonobo at the Twycross Zoo in the UK has discovered the. Best. Game. Ever! It's called Sliding Down the Hill. To play, climb to the top of the incline in the enclosure, then slide down on your back. Do it forwards or backwards, but backwards is better.
He has fun doing it over and over again and tries to get his parents involved. They're less interested in playing the game. Perhaps, like humans parent, they're just too tired.