Cats recognise the voice of their owner, but never evolved to care.
22
Lurch, a Watusi bull, had the largest horns in the world.
32
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
The octopus does not have a blind spot.
273