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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In the movie 'The Wizard Of Oz', Toto the dog's salary was $125 a week, while Judy Garland’s was $500 a week.
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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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A 42-foot sperm whale has about 7 tons of oil in it.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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Early American humans hunted car-size armadillos and used their shells for houses.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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