No brain, heart, bones, or eyes As Jellyfish are ancient, they do not have organs found in complex forms such as brain, hearts, bones, or eyes. They have a simple gelatinous body with a radial ...

Every summer more and more jellyfish are found on Welsh beaches. They are not made of jelly. They are actually 95% water and have no brain, blood or heart. They paralyse their prey with their ...

The infamous box jellyfish developed ... containing toxins that attack the heart, nervous system, and skin cells. It is so overpoweringly painful, human victims have been known to go into shock ...