Sea otters hold hands while sleeping so they don’t drift away from each other.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Dolphins have names for one another.
18
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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13