Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
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The largest earthworm on record was found in South Africa and measured 22 feet.
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Parrot parents "name" their children with a signature call.
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A 42-foot sperm whale has about 7 tons of oil in it.
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Cats sleep for 70% of their lives.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
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