Jellyfish, With Numbers Increasing From Warming Waters and Pollution, Force Shutdown of Power Plants
Expert: Sustained explosion in the population of jellyfish throughout the world's oceans has the potential to be "quite catastrophic."
They have no backbone and their slimey bodies are made up of more than 90 per cent water but they threaten to turn beaches into no-go zones within two decades.
Huge amounts of jellyfish have forced the shutdown of nuclear power plants in Japan, already hit by the earthquake and tsunami, Scotland and a coal-powered plant in Israel in the past few weeks.
And a sustained explosion in the population of jellyfish throughout the world's oceans has the potential to be "quite catastrophic" if it is not checked, said jellyfish expert Dr Jamie Seymour from James Cook University in Queensland.