Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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One litter of kittens can be produced by more than one father.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Some British police cars carry a teddy bear to console children after an accident.
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There was a cable network called The Puppy Channel that, for 3 years, broadcast only broadcast footage of puppies playing.
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