Assertion: jellyfish's bell | /r/CapableOf | grow up to 7 feet
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text: Lion's mane are the largest species of jellyfish, with a bell that can grow up to 7 feet (2.1 meters) across and a thick mop of hair-like tentacles that reach nearly 120 feet (36.6 meters) long, according to Oceana, a nonprofit ocean research and conservation organization.