TOKYO -- Seas around the world are turning into jellyfish soup, as swarms of the creatures hit coastal areas, paralyzing power plants and undermining fisheries.
These massive outbreaks are being caused by coastal development, overfishing and other man-made factors. Giant jellyfish have been swarming into the Sea of Japan in recent years.
Dozens of Nomura's jellyfish are caught in a fishing net. Courtesy of professor Shinichi Ue
The phenomenon in Japan is believed to be closely related to China's economic development.