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This is Scientific Americans' 60-second science.

I'm Jason Goldman. Got a minute?

Hippopotamuses.

People usually think of them as massive lumbering hulks of plant-eating muscle.

Reports do crop up of hippos snacking on crocs or chowing down on a drowned wildebeest. But those anecdotes

are often dismissed as aberrant behaviors. Opportunistic protein snacks added to a diet made mostly

of salad. But it turns out that hungry, hungry hippos intentionally seek out the sweet, sweet

taste of animal flesh. We saw a bunch of wild dogs came and attacked an impala, and the impala jumped into the water,

tried to swim across the little lake, and the hippo killed it.

Then a few minutes later, that hippo and a bunch of other hippos started eating on that impala.

University of Alaska researcher Joseph P. Dudley was in Zimbabwe studying elephants when he saw

this scene play out more than 20 years ago.

About that time, the wild dogs caught and killed another impala right next to the edge of the

waterhole, and three hippos came out of the water

and tried to take away the carcass of the Impala, the antelope from the wild dogs. As far as I had

ever heard, hippos didn't do either of those things. We now know that carnivory is actually

...