Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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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A puppy is born blind, deaf, and toothless.
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