The water surrounding upside-down jellyfish often stings to the touch, and now scientists know why.
Find out everything there is to know about jellyfish and stay updated on the latest jellyfish news with the comprehensive articles, interactive features and jellyfish pictures at LiveScience.com. Learn more about these fascinating creatures as scientists continue to make amazing discoveries about jellyfish.
The barrel jellyfish is named for its massive size and silly-looking head, but it's rare for researchers to get up close and personal with one. Two divers in the U.K. recently had the chance.
A weird, brilliant blue creature with feathery-like strands is washing ashore onto the beaches of New Jersey.
Its designers hope the device will make it much easier to collect delicate animals in the ocean without hurting them.
A remotely operated vehicle named Hercules filmed a rarely seen jellyfish that looks like a cross between an alien and a pinkish makeup bag.
On a long-gone seashore in what is now Death Valley, ancient, sticky sand retained impressions of the oldest known example of a jellyfish stranding.
If scientists were to draw an enormous family tree for all of Earth's animals, the oldest branch would belong to the jellyfish, a new study finds.
A dime-sized jellyfish that can deliver severely painful stings has been detected in New Jersey waters for the first time.
Like cast members on a distasteful reality show, Portuguese man-of-war "jellyfish" are descending upon the Jersey Shore in increasing numbers.
Billions of by-the-wind sailors, also called Velella velella, could wash ashore in coming months because of favorable water temperatures and onshore winds.
If you're bored with all the vertebrates in your wildlife-cam media diet, the Monterey Bay Aquarium in California is now streaming mesmerizing live footage of its jellyfish.
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