The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
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
Whales and dolphins can't taste anything other than salt.
11
Squirrels forget where they hide about half of their nuts.
698
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3