So, Chimps are Vicious Killers

Animal rights activists and others sometimes act as if chimpanzees and bonobos are somehow better than humans, not violent like us.

That was certainly the implication of studies conducted to determine if chimp violence was our fault.Nope. They are vicious killers -- not only of preylike monkeys -- but each other. From the New York Times story:

Are chimpanzees naturally violent to one another, or has the intrusion of humans into their environment made them aggressive? A new study, published Wed...