Sloths take two weeks to digest their food.
243
Cows can sleep standing up, but they can only dream lying down.
745
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
In 1949, an official boxing match between a bear and a man was held. The bear won.
41