Jellyfish

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.
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Deadly Jellyfish Blooms Predictable, New Study Finds
Irukandji jellyfish in a vial
May 13th, 2014
Jellyfish that cause an unpleasant and sometimes fatal illness can be predicted, new research finds. The results could lead to the closing of beaches during times when winds allow more jellies to float near shore.
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Secret Lives of Flower Hat Jellyfish Revealed
An adult flower-hat jelly
July 17th, 2014
For decades, flower hat jellyfish managed to keep their early lives a secret. But scientists finally watched the species grow in an aquarium.
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Scientists Create Peanut Butter Jellyfish
Moon jellyfish fed peanut butter
January 27th, 2014
It's high time someone took advantage of the word jellyfish in this way. Dallas aquarists have turned moon jellies into the first peanut butter jellyfish ever.
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Are Ocean Conditions Ripe for a Jellyfish Takeover?
jellyfish, cancer detector
November 5th, 2013
Data on jellyfish populations is making it hard to figure out if they are on the rise, and – if that rise is indeed happening – why it is so.
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The Lobed Comb Jelly
Lobed Comb Jelly
January 20th, 2013
The oval-shaped creatures have eight comb rows that they use to propel themselves in the water.
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Mistaken Identity: 'Sea Anemone' Is Actually New Type of Animal
The newly named Relicanthidae sea creature, which lives near hydrothermal vents, was previously thought to be a giant sea anemone (order Actiniaria). New research places this animal in a new order.
May 16th, 2014
A newly reformed "tree of life" for anemones revealed an errant branch: It turns out that one of the creatures classified as an anemone is actually the first discovered in a new order of animals, the equivalent of the first member of primates.
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