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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Jellyfish as a species are actually older than dinosaurs and sharks.
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The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
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Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
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An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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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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