Holy sh*t! I would have never believed someone if I did not see/read it for myself. Jellyfish 6 feet in diameter and over 400 lbs?!
Here is a small portion of the article:
The massive sea creatures, called Nomura’s jellyfish, can grow 6 feet (1.83 meters) in diameter and weigh more than 450 pounds (204 kilos). Scientists think they originate in the Yellow Sea and in Chinese waters. For the third year since 2005, ocean currents are transporting them into the Sea of Japan.