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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When cats are happy, they may squeeze their eyes shut.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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The Basenji dog is the only dog that is not able to bark.
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Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
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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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