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
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Condoms were originally made of animal intestines or linen.
347
Cows can sleep standing up, but they can only dream lying down.
745
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-12
A scorpion can hold its breath for up to 6 days.
19