It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Cats sleep for 70% of their lives.
8
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Parrot parents "name" their children with a signature call.
112