It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Cows can sleep standing up, but they can only dream lying down.
745
All the pet hamsters in the world are descended from a single wild golden Hamster found in Syria in 1930!
34
If a man could run as fast for his size as an ant can, he could run as fast as a racehorse.
108
The original name for the butterfly was 'flutterby'!
121