Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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Bats sleep 18-20 hours per day.
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Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
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The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
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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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