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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It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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One in three dog owners say they have talked to their pets on the phone.
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A group of pugs is called a grumble.
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