The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
Cats recognise the voice of their owner, but never evolved to care.
22
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Denmark has twice as many pigs as there are people.
66
One in three dog owners say they have talked to their pets on the phone.
427