Raj from the Big Bang Theory is married to Miss India.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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Dolphins have names for one another.
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A new born kangaroo is small enough to fit in a spoon!
7
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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