Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
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Raj from the Big Bang Theory is married to Miss India.
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When dragonflies mate, their tails form a love heart.
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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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