Female kangaroos have three vaginas.
2
The cat brain weighs about 30g.
167
Early American humans hunted car-size armadillos and used their shells for houses.
12
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 scientifically proven that stroking a cat can lower one's blood pressure!
456
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17