With the summer vacation season approaching, local governments are preparing for a “war on jellyfish” by installing ...

But it's not. It's real and a nightmare for Japanese fishermen. The massive sea creatures, called Nomura's jellyfish, can grow 6 feet (1.83 meters) in diameter and weigh more than 450 pounds (204 ...

The venom of the Nomura, the world's largest jellyfish, a creature up to 6 feet in diameter, can ruin a whole day's catch by tainting or killing fish stung when ensnared with them in the maze of ...

In Japan, fishermen have seen extraordinary blooms of Nomura's jellyfish annually since 2002. The species grow up to 6.5ft (2m) in diameter and weigh as much as 485 lbs (220kg). They have ...