Cats recognise the voice of their owner, but never evolved to care.
22
In Australia, there are spiders big enough to eat snakes.
20
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34