Rattlesnake mating sessions have been known to last more than 22 hours.
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The male seahorse carries babies and 'gives birth' to them instead of the female.
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A zoo in China gave a gay penguin couple the opportunity to raise a chick.
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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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