A group of kittens is called a "kindle".
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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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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Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
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Dolphins have names for one another.
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