Shin Kubota, professor at Kyoto University in Japen studies the scarlet jellyfish, which is one of three jellyfish species considered “immortal’. A better way to put it is that the jellyfish will not die but can rejuvenate. An injured adult scarlet jellyfish will sink to the ocean floor, morph into its infant state, and become a new adult all over again within about two months. Kubota has successfully rejuvinated a scarlet jellyfish 12 times. Human beings and jellyfish are not too different genetically so Kubota’s hopes are if he can determine the key to this rejuvenation it can be applied to humans.