Why Do Cannibals Do It?
It’s not just humans who practice cannibalism: birds, certain flies, our close cousins the chimpanzees, and even bacteria eat their own kind. Intelligent species, like humans, may eat each other for psychological or religious reasons. Chimps seem to do it in a fit of revenge or just plain nastiness, as when females eat other mothers’ babies. Lions do it to preserve their genetic line?when a male takes over a pride, he eats the previous king’s cubs. Praying mantises do it as part of good sex: At the end of the sex act, the female bites the head off her mate and eats him.
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