The St. George’s Cross medusa is about four inches wide, three inches long, and has about 240 tentacles. The St. George’s Cross medusa is considered fairly large for a jellyfish, at about four inches ...

A slimy jellyfish weighing as much as a sumo wrestler has Japan's fishing industry in the grip of its poisonous tentacles. Vast numbers of Echizen kurage, or Nomura's jellyfish, have appeared around ...

Large, seasonal aggregations of jellyfish, called jellyfish blooms, are becoming more frequent in many coastal regions. Here ...

TOKYO — Swarms of giant jellyfish are floating along the coastline of the Sea of Japan, and the damage they may cause to fisheries is feared to be the worst in more than a decade. Nomura’s jellyfish ...

A student-led research group from Tohoku University has discovered a new species of the venomous Physalia (commonly known as Portuguese man-of-war) that has never been seen before in northeast Japan.

HIROSHIMA, Japan, March 9 (UPI) -- Giant jellyfish, thought to be from Chinese waters, have been floating into the Sea of Japan and wreaking havoc on the Japanese fishing industry, officials say.

TOKYO, July 20 (UPI) -- Giant jellyfish, which wreak havoc in its wake, are again threatening Japan's coastal areas and its fishermen this year. The Nomura jellyfish, as they are called in Japan, can ...