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

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

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

A rare freshwater jellyfish was spotted last month in Lake Erie, according to Pennsylvania officials. Ray Walter, an intern with the Pennsylvania Department of Environmental Protection, came across a ...

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

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

Great Lakes biologist Jim Grazio experienced a rare encounter that was more than 30 years in the making. On July 15, while collecting water from the Presque Isle Marina for the Department of ...

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

When thinking of places you might find a jellyfish in the water, Presque Isle State Park may not be at the top of the list, but one keen-eyed intern at the park managed to capture a freshwater ...

The area is part of a landscape known as the Sibley Prairie, a unique ecosystem that is a top priority for conservation groups in southeast Michigan.

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

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