Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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A zoo in China gave a gay penguin couple the opportunity to raise a chick.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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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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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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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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