A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Cats recognise the voice of their owner, but never evolved to care.
22
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Tigers can see 6 times better at night than humans.
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