Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
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The station master and operating officer at the Kishi Station, Japan, is a cat!
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Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
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Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
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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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Mosquitoes don't just bite you, they also pee on you.
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