It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
There's a rare breed of pig that looks like a sheep.
14
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18