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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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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One litter of kittens can be produced by more than one father.
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A group of pugs is called a grumble.
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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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When dragonflies mate, their tails form a love heart.
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