The oldest creature ever found was Ming the clam at an admirable 507 years old.
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Jellyfish as a species are actually older than dinosaurs and sharks.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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The reindeer is the only mammal that can see UV light.
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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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