The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Dolphins have names for one another.
18
Squirrels forget where they hide about half of their nuts.
698
Cats and dogs can hear ultrasound.
350
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26