The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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The cat brain weighs about 30g.
167
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
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During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45