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.

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 ...

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

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 ...

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

In Asia, many jellyfish species find their way into cuisine. The largely tasteless animals are used predominately for their texture. David Fleetham/The Image Bank/Getty Images Plus This article is ...

A moon jellyfish bloom in the Gulf of America is driving record numbers of pink meanie jellyfish to Texas shores, where they feed aggressively on their prey.

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.