A tiny freshwater jellyfish native to China has been spotted in Oklahoma waters. The "peach blossom" jelly has been seen in the U.S. for a century.

Experts are scrambling to explain a rise in jellyfish blooms in the last place you'd expect: the freshwater lakes of middle ...

With a baking hot summer just starting, millions of Americans have already begun flooding the nation’s beaches. They’ll face traffic jams, algae blooms, sunburn and a rising threat – painful jellyfish ...

A rare freshwater jellyfish, Craspedacusta Sowerbii, was sighted at Presque Isle State Park. The jellyfish, about the size of a penny, is harmless to humans. Sightings are rare as they typically ...

Someone should tell this jelly that fish are friends, not food. An underwater photographer who was free-diving off of Byron Bay, Australia managed to capture a truly wild scene: A fish had become ...

Beachgoers are spotting rare pink jellyfish along the Texas coast. These “pink meanies” can grow massive, sting after death, ...

Isolated coastal communities in Western Australia’s Pilbara have been put on alert after a mass die-off inundated beaches with rotting red jellyfish and toxic marine life.

What might look like a simple swarm of jellyfish provides food, shelter and opportunity for a variety of creatures.

Pink meanie jellyfish can look like cotton candy in the water and have a mild sting, said Jace Tunnell of the Harte Research ...