The truth about jellyfish
Have you ever wondered what role do jellyfish play in the underwater world? Probably not, but if you did then you just thought that theese are some simple and beautiful organisms that can be sometimes annoying since it can sting you. But are these creatures really what they seem to be like? Fragile and delicate? Not for many scientists. One of them is Lucas Brotz who says that the abnormally huge amount of this deadly creatures is a signal that things in enviroment are changing and they are not good for other species and humans especially. Jellyfish shut down nuclear power plants, ruined fisheries, by sweeping in to the mesh and poisoning f.ex. salmons, closed beaches all around the world. They are masters of death and probably the most eficient animal that moves, they figured out how to get the most by doing the least - says Sean Colin, a marine biologist. They can make a huge flow of water, which is not only used by them for propulsion but actually mainly to capture a prey witho...