A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
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
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10