A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
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
When dragonflies mate, their tails form a love heart.
22
Denmark has twice as many pigs as there are people.
66