Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
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Tigers, leopards, and jaguars love "Calvin Klein's Obsession for Men". The scent is used to attract animals to cameras in the wilderness, and was even a turn on for one pair of Jaguars who were subject to it.
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Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
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Cats recognise the voice of their owner, but never evolved to care.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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