Cats recognise the voice of their owner, but never evolved to care.
22
The most expensive cow in the world was sold in 2009 for $1.2 million.
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The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
When you shave a guinea pig it looks like a little hippo.
19
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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