One study showed that a way caterpillars stopped the spread of diseases was to eat the infected.
The sand tiger shark is a natural born killer and takes sibling rivalry to a whole new level of cut-throat.
Scientists have discovered million-year-old evidence that our ancestors may have been cannibals.
Have you ever wondered why cannibalism wasn't more popular?
Have you ever wondered why cannibalism isn’t more popular? Just think about it, each animal is made of a complex variety of chemical ingredients. As an animal, we can either try to assemble these ingredients haphazardly, eating other animals and plants and hoping these assorted meals will add up to exactly what we need. Or we can get all our essential nutrients in one complete package by dining on our next-door neighbor! Learn more on this Moment of Science.