Sea otters hold hands while sleeping so they don’t drift away from each other.
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Raj from the Big Bang Theory is married to Miss India.
11
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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When cats are happy, they may squeeze their eyes shut.
10
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Some British police cars carry a teddy bear to console children after an accident.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13