Ken Allen, Escape ArtistBy
Ken Allen was a famous orangutan at the San Diego Zoo. He was famous because he escaped from his enclosure 8 different times! When he was free, he generally just walked around the zoo, looking at the other animals and at tourists, until a keeper led him home. But one time he walked by the enclosure of Otis, an orangutan Ken Allen had never liked. Ken Allen threw rocks at Otis! Otherwise he was a very peaceable orangutan.