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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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
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Penguins have a gland above their eye that turns saltwater into freshwater.
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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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