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Lion’s Mane Jellyfish

The lion’s mane jellyfish is the world’s largest jellyfish species. This open-ocean dweller can grow to over 2 m (6-7 ft) in diameter and have tentacles trailing behind them up to 120 feet long. The “mane“ of these long, hair-like tentacles hangs from the bell-shaped body’s underside, consisting of eight tentacle clusters housing up to 150 tentacles per cluster. These gelatinous creatures are easy to spot thanks to their large size and dark yellow to reddish hue, and bioluminescent abilities, which help them stand out against the blue background of the water.

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