Blurred vision of the jellyfish
2005/07/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria
It is capable of seeing a jellyfish that lives in the Caribbean Sea, Tripedalia cytosphora. Most jellyfish do not move to go and find food, but they are carried away by water from one side to the other and feed on the foods that accompany them. This jellyfish nothing to catch the food. Therefore, having the opportunity to see him is very beneficial to him.
Jellyfish have no brain, they only have a nervous ring. Therefore, they could not process the information collected with our eyes. But the jellyfish hunter has other eyes. The jellyfish is not totally globose, it has four corners and a system that helps you see in every corner. The system consists of four eyes and two lenses. The eyes are very simple, simple points full of pigments.
Enough to know where the jellyfish is going. It seems that it does not have a very demanding view, but on the other hand, if things look more detailed, it would receive too much information. In this way, he sees the great structures of his environment and the little things do not bother him. A tailored vision.
