Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
The cat brain weighs about 30g.
167
Tigers, leopards, and jaguars love "Calvin Klein's Obsession for Men". The scent is used to attract animals to cameras in the wilderness, and was even a turn on for one pair of Jaguars who were subject to it.
17
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
Cows can sleep standing up, but they can only dream lying down.
745