Bonobo Cannibalism: Bonobos Observed Eating Their Young
An account [by a group of primatologists led by Gottfried Hohmann] of a group of wild bonobos consuming a dead infant [...] is the first report of cannibalism in these animals -- making the species the last of the great apes to reveal a taste for the flesh of their own kind.
[...] [Eight bonobos] spent the rest of the day devouring the corpse.
[...] But [Andrew] Fowler noted signs that this meal was somehow different. More individuals got a taste of the infant than is typical when the apes share meat. They also spent 7½ hours eating the body -- longer than they take over a similar-sized monkey. Some even played with it. "If they just think of it as another piece of meat, why do they behave differently with it?" he asks.
Quoted on Sat Mar 31st, 2012