When cats are happy, they may squeeze their eyes shut.
10
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Two dogs were among the Titanic survivors.
262
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
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Whales and dolphins can't taste anything other than salt.
11
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9