Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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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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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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