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 the year-long project girl group I.O.I, while still under Jellyfish Entertainment.It was confirmed that following their promotions as part of I.O.I, the trainees would officially debut as members of the agency's first girl group. On June 3, 2016 Jellyfish Entertainment launch their new music channel "Jelly Box". "Jelly Box" is similar to Jellyfish Entertainment’s previous project "Y.Bird from Jellyfish Island" and it will showcase Jellyfish Entertainment artists and producers and include collaborations with artists outside of the label. On June 28, 2016, Jellyfish debuted nine-member girl group Gugudan. In August 2016, Park Hyo-shin departed from the agency after eight years