It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
All the swans in England are property of the Queen.
36
Service dogs are trained to know when they are on duty. When their harness is on, they know they are at work. When you take it off they instantly become playful and energetic.
11
There's a rare breed of pig that looks like a sheep.
14
The flea can jump 350 times its body length, that is like a human jumping the length of a football field.
32
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6