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 ...

An intern with the Department of Environmental Protection captured a rare sight in Pennsylvania's Presque Isle Bay — a ...

A rare jellyfish was spotted last month in Lake Erie near Pennsylvania, state officials said. Ra;y 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 ...

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

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, ...

The U.S. Army Corps of Engineers reported Great Lakes water levels for the months of June and July showed a mix of rising and dropping levels.

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.

A cyanobacteria bloom has expanded in western Lake Erie, now covering an area of about 160 square miles along the Michigan ...