In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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A group of kittens is called a "kindle".
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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A puppy is born blind, deaf, and toothless.
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A group of pugs is called a grumble.
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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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One litter of kittens can be produced by more than one father.
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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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