Jellyfish always much greater than the Lion's Mane, whose bell diameter can reach . The rarely encountered deep-sea jellyfish "Stygiomedusa gigantea" is another candidate for "largest jellyfish", with its thick, massive bell up to wide, and four thick, "strap-like" oral arms extending up to in length, very different from the typical fine, threadlike tentacles that rim the umbrella of more-typical-looking jellyfish, including the Lion's Mane. Jellyfish have a complex life cycle which includes both sexual and asexual phases, with the medusa being the sexual stage in most instances. Sperm fertilize eggs, which develop into larval planulae, become polyps, bud into ephyrae
Jellyfish Entertainment working together. In October 2016, Jellyfish Entertainment announced that former Dal Shabet member Jiyul, signed a contract with the agency in order to pursue her career as an actress. In November 2016, former Jewelry member Kim Ye-won, joined Jellyfish Entertainment as an actress. On December 13, 2016, Jellyfish Entertainment released their "Jelly Christmas 2016" single album with the song, "Falling" (), as part of their digital music channel project "Jelly Box". The Jellyfish artists participating were Seo In-guk, VIXX, Gugudan, Park Yoon-ha, Park Jung-ah, Kim Gyu-sun, Kim Ye-won and Jiyul. In April 2017, agency trainee Yun Hee-seok represented Jellyfish Entertainment