Hippos are aggressive and will attack humans.

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Electric disco clams will flash their predators to confuse them

Giant clams can weigh up to 440 lbs (200 kgs) and about 3 ft ( (1 m) across

Pigs can breathe through their butts

A handful of soil or water will likely contain thousands of microscopic worms called nematodes

Image of a polar bear lying down

The Polar Bear

Gorillas fart almost non-stop due to all of the fiber in their diet