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

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

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

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

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

According to Pennsylvania DEP, their summer intern was in "the right place at the right time" to capture the moment.

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

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, ...