Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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Parrot parents "name" their children with a signature call.
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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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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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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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A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
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