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 ...

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

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

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

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

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 ...

ERIE, Pa. (AP) — 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 ...

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 ...