An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
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The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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Lobsters have blue blood.
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Jumping fleas can accelerate 50 times faster than the space shuttle.
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A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
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Sharks have been on the planet longer than trees.
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