Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
When you shave a guinea pig it looks like a little hippo.
19
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
The largest breed of rabbit is the Flemish Giant.
65
Cats sleep for 70% of their lives.
8
There's a rare breed of pig that looks like a sheep.
14