The ancestor of all domestic cats is the African Wild Cat which still exists today.
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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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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
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Vanilla flavoring is sometimes made with an ingredient from beaver pee.
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Only 3% of bird species have penises.
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Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
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