Monkeys are very cool, but not as cool as chimps. (I needed that segue to relay a story my dad once told me.)

My dad was at a zoo once and was watching some chimps at mealtime. One chimp was eating a peach. When he got to the pit, he held it up and looked at it for a moment, and then bent over and inserted it partway into his anus. With a satisfied look on his face, he then removed it put it into his mouth and ate it.

He was just checking to make sure it would fit on the way out.