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

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 ...

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

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.

They've been in the Great Lakes Basin for decades, but recently entered lakes Erie and St. Clair. Freshwater jellyfish - about the size of a penny or quarter - are translucent, slimy blobs that ...

Waves break on Edgewater Beach west of downtown Cleveland, Thursday, Sept. 9, 2010. They've been in the Great Lakes Basin for decades, but recently entered lakes Erie and St. Clair. Freshwater ...

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.

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