Cats sleep for 70% of their lives.
8
Condoms were originally made of animal intestines or linen.
347
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
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
