Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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When cats are happy, they may squeeze their eyes shut.
10
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
22
Sea otters hold hands while sleeping so they don’t drift away from each other.
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