About 15 thousand years ago, submerged reef rose above sea level, blocking inter-island small pond with a few jellyfish. The absence of predators allowed them to multiply their hearts' content, and burning the hairs in the process of evolution gradually disappeared - sting was nekogo.Meduzy different sizes: from the giant with a basketball to the little things with cherries. All of this jelly-like crowd every day twice crosses the lake from one bank to another on the path of sunlight. Meduznaya physiology rather primitive: eight eyes and algae that live within their cells. The last rays of the sun are necessary for growth and development, it makes jellyfish ever roam for solntsem.Nochyu jellyfish swim at the lower depths, where the water is rich in nitrogen. Diving in Ongeim'l Tketau prohibited - hydrogen sulfide in the lower layer of the lake has a negative impact on the human body. Yes, and outside interference in the microworld does not benefit a permanent resident. But just so you can swim and is very unusual!
