Ants that raise insects for meat

It might be time to cross another thing off the list of "Stuff That Only Humans Do." Some researchers think that a species of ants raise other animals (in this case, insects) for the sole purpose of eating those animals. If they're right, it's the first time that this behavior will have been documented in a species other than humans. (There are ants that "milk" other insects, but that's different.) (Via Rowan Hooper)