From The Telegraph:
The Turritopsis Nutricula is able to revert back to a juvenile form once it mates after becoming sexually mature.
Marine biologists say the jellyfish numbers are rocketing because they need not die.
Dr Maria Miglietta of the Smithsonian Tropical Marine Institute said: “We are looking at a worldwide silent invasion.”
The jellyfish are originally from [...]
The trawler, the Diasan Shinsho-maru, capsized off Chiba`as its three-man crew was trying to haul in a net containing dozens of huge Nomura’s jellyfish.
Each of the jellyfish can weigh up to 200 kg and waters around Japan have been inundated with the creatures this year. Experts believe weather and water conditions in the breeding grounds, [...]
The invasion begins!
The Jellyfish Nebula on Wikipedia
Shiff arms jellyfish (Rhizostoma pulmo), originally uploaded by Arne Kuilman.