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

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

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 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 ...

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

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 ...

This freshwater jellyfish (Craspedacusta sowerbi), photographed in Maine in the early 1960s, is about an inch across its bell. The wormlike forms are its tentacles. Photo courtesy of Matthew Scott ...

Freshwater jellyfish — craspedacusta sowerbyi — were first found in Michigan in the 1930s. It is believed they originated in the Yangtze River in China and were brought stateside hiding in ...

Freshwater jellyfish are smaller than their saltwater cousins, measuring approximately the size of a quarter in their adult — or medusa — stage. The stings of their tiny tentacles pose no ...

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 ...