The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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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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Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
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Lurch, a Watusi bull, had the largest horns in the world.
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Alligators can live up to 100 years.
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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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The male seahorse carries babies and 'gives birth' to them instead of the female.
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