There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
There's a rare breed of pig that looks like a sheep.
14
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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