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 ...

Adamson said she watched the crocodile with the hippo for around 45 minutes but did not see it eat any of the carcass. Eventually it swam away with its meal downriver. "It's certainly not often ...