Spectacular , perhaps , to scientists , but perilous to villagers along the Japanese coast who have seen the destructive habits of these colossal creatures in the past . Nomura 's jellyfish seen in Sea of Japan for third year since 2005 . Species can grow 6 feet ( 1.83 meters ) in diameter , 450 pounds ( 204 kilos ) and live up to 100 years.
Nomura 's jellyfish seen in Sea of Japan for third year since 2005 . Species can grow 6 feet ( 1.83 meters ) in diameter , 450 pounds ( 204 kilos ) and live up to 100 years.