9 of the world's most extreme lakes

Check out the biggest, deepest, saltiest and all-around strangest bodies of water Earth has to offer.

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Jellyfish Lake Jellyfish Lake (Photo: Ethan Daniels / Shutterstock)

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The lake with the oddest inhabitant

Millions of jellyfish float around in the aptly named Jellyfish Lake in Palau’s Rock Islands. Moon jellies and golden jellyfish thrive without predators in this incredible freshwater lake, and they’re harmless to divers.

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