Dogs can make about 100 different facial expressions.
18
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
A full-grown bear can run as fast as a horse.
35
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
The male platypus has poisonous spurs on its legs.
58
The lifespan of mammals is about 1 and a half billion heartbeats.
127
The heart of a mouse beats 650 times per minute!
53