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 ...

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 ...

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 ...

“I think all jellyfish are cool, but it is a wonder they are found around here.” Kyle Gabehart looks at a few freshwater jellyfish he scooped up earlier this month at Coal City Area Club.

The jellyfish float just below the water's surface. Wildlife officials said the freshwater jellyfish have the same "stinging cells" as saltwater jellyfish but do not penetrate human skin.

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 ...

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

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

You might expect jellyfish in tropical waters, but not while swimming in the Great Lakes, yet that’s exactly what surprised scientists when Lake Erie recently had a rare freshwater jellyfish sighting.