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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When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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