Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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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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The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
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A zoo in China gave a gay penguin couple the opportunity to raise a chick.
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
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Some British police cars carry a teddy bear to console children after an accident.
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