Jellyfish the first vortex and pushes the animal forward, but the mesoglea is so elastic that the expansion is powered exclusively by relaxing the bell, which releases the energy stored from the contraction. Meanwhile, the second vortex ring starts to spin faster, sucking water into the bell and pushing against the centre of the body, giving a secondary and "free" boost forward. The mechanism, called passive energy recapture, only works in relatively small jellyfish moving at low speeds, allowing the animal to travel 30 percent farther on each swimming cycle. Jellyfish achieved a 48 percent lower cost of transport (the amount
Jellyfish Entertainment in the second season of the television survival show "Produce 101". On April 10, 2017, actress Cho Hye-jung joined Jellyfish Entertainment. In June 2017, actress Jung So-min joined Jellyfish Entertainment. In August 2017, Jellyfish 32% shares was acquired by CJ E&M, which previously acquired 19% of Jellyfish's shares in 2013 and effectively becoming Jellyfish Entertainment largest shareholder after having 51%. The following month, Gugudan 5959 was formed as the sub-unit of Gugudan, composed of Hyeyeon and Mina. On August 16, 2017, indie soloist Jang Hye-jin joined Jellyfish Entertainment. Soloists Groups Sub-units Source: Source: Distributing labels Jellyfish Entertainment Jellyfish Entertainment (),