With their African wildlife predators, these defensive traits are often necessary. What do hippos eat? Are they pure herbivores or do their huge strength and size allow them to be more of an omnivore?

Hippos are among the three largest land mammals, smaller only than the rhinoceros and the elephant. Thanks to their vast size ...

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Things can get pretty intense when lions and hippos come together, but sometimes the result is much more comedic than you might expect!

All hippos, including pygmy hippos, produce this secretion. It doesn’t matter what they eat, their bodies produce this “red sweat.” When isolated, these two pigments are highly unstable.

Hippos aren’t the only surprising cannibals ... So, to speed this process along, some larvae eat each other. (Also see “What Ate a 9-Foot Great White Shark? Another Great White?”) ...

Because hippos can’t mulch food into very small pieces, it takes longer for it to be digested, Clauss says. “If food has to stay longer in the gut, it means one cannot eat more, quickly.