Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
When cats are happy, they may squeeze their eyes shut.
10
Sea otters hold hands while sleeping so they don’t drift away from each other.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
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.
40
Some British police cars carry a teddy bear to console children after an accident.
46