Cats recognise the voice of their owner, but never evolved to care.
22
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2