Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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Raj from the Big Bang Theory is married to Miss India.
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
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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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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