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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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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One in three dog owners say they have talked to their pets on the phone.
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Whales and dolphins can't taste anything other than salt.
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Dolphins have names for one another.
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Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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