Jellyfish system. Nematocysts, which deliver the sting, are located mostly on the tentacles; true jellyfish also have them around the mouth and stomach. Jellyfish do not need a respiratory system because sufficient oxygen diffuses through the epidermis. They have limited control over their movement, but can navigate with the pulsations of the bell-like body; some species are active swimmers most of the time, while others largely drift. The rhopalia contain rudimentary sense organs which are able to detect light, water-borne vibrations, odour and orientation. A loose network of nerves called a "nerve net" is located in the epidermis. Although traditionally thought
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