Early American humans hunted car-size armadillos and used their shells for houses.
12
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Sharks have been on the planet longer than trees.
14
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
A cat can jump FIVE TIMES as high as it is tall!
371