It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Sloths take two weeks to digest their food.
243
The reindeer is the only mammal that can see UV light.
17
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13