Penguins have a gland above their eye that turns saltwater into freshwater.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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A group of kittens is called a "kindle".
10
A cow produces around 200,000 glasses of milk in her lifetime.
373
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
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