Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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A new born kangaroo is small enough to fit in a spoon!
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Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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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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