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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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
Dolphins have names for one another.
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The Platypus used to be considered a myth like Bigfoot and the Yeti.
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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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