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jellyfish

Jellyfish and Comb Jellies
Image: iStockphoto.com/psp193709

Jellyfish and Comb Jellies

The graceful, pulsing jellyfish has survived for more than 600 million years. Made up of 95% water, these sublimely simple invertebrates aren’t fish at all. They use a network of neurons to sense their environment.

Find out what’s so special about jellies and how they're taking the oceans by storm.

Ocean Portal
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The World’s Largest Jellyfish

The World’s Largest Jellyfish

The lion’s mane jellyfish can grow up to 8 feet wide. With 60-foot-long tentacles, it catches moon jellyfish for dinner. But it's no match for carnivorous anemones. More...

Video
Discovery
‘Immortal’ Jellyfish Swarm World’s Oceans

‘Immortal’ Jellyfish Swarm World’s Oceans

Turritopsis is a jellyfish species that can reverse its age — transform from an adult into a baby — in an emergency. Discover more shocking facts about this unique jellyfish. More...

Article
National Geographic
Artificial Jellyfish Built from Rat Cells

Artificial Jellyfish Built from Rat Cells

Learn how bioengineers built a jellyfish from heart tissue cells and silicone. Watch it swim and discover how this project can lead to a platform for testing heart medication. More...

Article
Nature
Anatomy of a Jellyfish

Anatomy of a Jellyfish

Jellyfish aren’t actually fish. A simple network of nerves helps them swim and catch food. Want to know which species can give a potentially fatal sting? Watch this video. More...

Video
HowStuffWorks
Dr. Angel Yanagihara: Venom of the Box Jelly

Dr. Angel Yanagihara: Venom of the Box Jelly

The Australian box jelly is the most deadly venomous animal on the planet. Biochemist Angel Yanagihara has been studying its venom for 14 years. Find out what she’s discovered. More...

Profile
WAMC Northeast Public Radio
Jack Costello, Biologist: Why Jellyfish Swim

Jack Costello, Biologist: Why Jellyfish Swim

Jellyfish aren’t designed for travel, so why do they swim? Jack Costello has discovered that locomotion helps them capture prey. Get the details. More...

Profile
Sea Studios Foundation
Jellyfish Anatomy

Jellyfish Anatomy

Jellyfish are made up of about 95% water. Their symmetrical body design helps them find food and detect danger. More...

Article
BioExpedition.com
Jellyfish and Sea Anemones

Jellyfish and Sea Anemones

Explore this image gallery featuring a spectrum of beautiful and bizarre jellyfish, sea anemones, and other cnidarians. More...

Images
NOAA
Jellyfish Gone Wild!

Jellyfish Gone Wild!

Invasion of the Jellyfish sounds like a cheesy horror film. But escalating jellyfish populations are truly wreaking havoc around the globe. More...

Article
National Science Foundation
Jellyfish Lake

Jellyfish Lake

When jellyfish were trapped in a saltwater lake millions of years ago on the Palau islands, they evolved and lost their sting. See how these invertebrates survive in a lake. More...

Article
PBS
Jellyfish Reproduction

Jellyfish Reproduction

With the right diet, jellyfish grow up super fast. Watch how they develop from larvae to pinecone-shaped polyps — reaching adulthood in just a few weeks. More...

Video
HowStuffWorks
John Dabiri: Biophysicist

John Dabiri: Biophysicist

John Dabiri studies jellyfish to improve engineering systems, such as wind energy technology. Take a look at the profound implications of his work unraveling the secrets of jellyfish locomotion. More...

Profile
MacArthur Foundation
Stunning Jellyfish

Stunning Jellyfish

Check out this video to see mesmerizing swarms of two different species: tiny thimble jellyfish and luminous moon jellies. More...

Video
National Geographic
Synthetic Jellyfish

Synthetic Jellyfish

In an effort to make living muscle tissue, scientists created a medusoid from silicone and muscle cells. And it swims just like the moon jellyfish it's modeled after! More...

Video
SciShow
Test Your Knowledge of Jellyfish

Test Your Knowledge of Jellyfish

Do you know what jellyfish eat? Or what to do if you get stung by one? Test your jellyfish smarts with this quiz. More...

Interactive
RedJellyfish.com

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