Its presence could make a minuscule fish downright jelly. Scientists were awestruck after discovering a schoolbus-sized phantom jellyfish off the coast of Argentina, as seen in incredible footage shot ...

Jellyfish infestations are troubling tourists and scientists alike. A diver attaches a sensor to a large Echizen jellyfish, Oct. 4, 2005 off the coast of Komatsu in Ishikawa prefecture, Japan. Yomiuri ...

Monster jellyfish are likely to wash up on Welsh beaches in growing numbers in the coming years, a marine expert has warned. With the UK currently in the grip of a marine heatwave, warmer waters will ...

A "monster jellyfish" was spotted on the coastline near Lancashire this week, prompting the local council to issue guidance to beachgoers as the warm weather persists. As temperatures rise across the ...

If you’ve walked the shoreline in Virginia Beach or the Outer Banks lately, you’ve likely come across a monster jellyfish or two. Known as mushroom cap jellyfish, the tentacle-less jellies washed up ...