Swimmers in Ocean City are being warned after an unusual surge in jellyfish sightings, driven by calm seas, warm water and ...

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

When it comes to treating jellyfish stings, don’t fall for the myth of urinating on the sting. Instead, follow these steps ...

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 ...

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, ...

Research on alien-like deep-sea jellyfish has hinted at a previously unknown barrier in the North Atlantic Ocean.

A dozen of France’s key beaches have been closed after dangerous sea animals were spotted. The Portuguese man o' war, which is a dangerous species that looks like jellyfish, has washed up on beaches ...

Big personalities. Big issues. Big opinions. That’s what you can expect from The Drum’s new weekly series, The Big Interview.

Youth volunteers from The Nautilus Project have removed more than 3.5 tonnes of invasive seaweed from beaches around ...