Every now and then, reports of a hippo of hunting down prey, eating a carcass, or stealing prey from a crocodile are heard, but they're typically considered 'aberrant' or 'unusual' behavior.

The grisly photographs show a hippo eating a corpse of another floating in a river in South Africa’s Kruger National Park. They were taken by biologist Leejiah Dorward while on safari last year.

Normally thought of as herbivores, hippos have shown other carnivorous behavior before, too—in a 1998 paper, Joseph Dudley reported two of them killing and eating an impala. (Also see ...