Abstract
Among living creatures, it does not take a specialist to realize that jellyfish are not dainty delights of the deep. Although they may be beautiful in appearance, jellyfish are successful predators. Basically these creatures are composed of two layers of skin cells with a jellylike layer separating the inner and outer tissues. In the context of multitasking, some skin cells of the jellyfish double as muscle cells. Cooperative action with other similar cells enables the organism to move. In addition, some cells are shed from the outer skin layer into the inner layer of jellylike material. These cells then organize themselves loosely into a net of nerve cells. There is no brain.