An orangutan at the Fort Worth Zoo. This was shortly before some douche decided to start throwing shit in the living area of the orangutans (a map of the zoo, popcorn, etc). A few people started laughing but then the crowd got angry as they realized you shouldn't screw with the animals like that. It may be fun to watch them interact with things, but not like that.
Orangutan trivia: They are the world's larger tree-dwelling animal.