When dragonflies mate, their tails form a love heart.
22
Dogs have been man's pet for over 14,000 years.
224
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
A cow produces around 200,000 glasses of milk in her lifetime.
373
Cows can sleep standing up, but they can only dream lying down.
745
Moths are unable to fly during an earthquake.
328