Swimming has been banned at certain beaches in theBasque region of the North of Spain after Portugese man o' war stung ...

GRAND RAPIDS, Mich. (WOOD) — An invasive freshwater jellyfish has been spotted in Lake Erie. The Pennsylvania Department of ...

There’s no shortage of vacation horror stories, from lost luggage to sunburns that make you regret everything. But few beach tales stick quite like the one involving jellyfish. Some people might even ...

A rare freshwater jellyfish was spotted last month in Lake Erie, according to Pennsylvania officials. Ray Walter, an intern ...

Craspedacusta sowerbii aren't frequently seen in their adult, "medusa" form. The invasive species likely came from Asia in ...

Great Lakes biologist Jim Grazio experienced a rare encounter that was more than 30 years in the making. On July 15, while ...

Lake Erie, the fourth largest of the five Great Lakes stretching across four states — Michigan, Ohio, Pennsylvania, and New ...

Coastal communities on both sides of the Irish Sea are being warned to look out for the largest known species of jellyfish.

James Grazzio, a Great Lakes biologist with the Department of Environmental Protection, never expected to encounter the ...

A rare freshwater jellyfish was captured on camera at Lake Erie. The Pennsylvania Department of Environmental Protection ...

Swimmers in Ocean City are being warned after an unusual surge in jellyfish sightings, driven by calm seas, warm water and ...

A creature resembling a jellyfish was spotted in a pond at Presque Isle State Park. Said creature is called a Craspedacusta ...