It has been estimated that a bite from a grizzly bear can crush a bowling ball.
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Alligators can live up to 100 years.
337
Lurch, a Watusi bull, had the largest horns in the world.
32
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6