Cosma / Communication / Knowledge / Realm / Terrestrial / Life / Animal / Invertebrate / Jellyfish
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Introduction1
Deep Marine Scenes (YouTube Channel)
Deep Marine Scenes (Facebook)
Dictionary
jellyfish : the typically free-swimming, bell-shaped, usually sexually-reproducing solitary or colonial form of a cnidarian in which the whorls of tentacles lined with nematocysts arise and hang down from the margin of the nearly transparent, gelatinous bell — Merriam-Webster See also OneLook
Thesaurus
Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords
Encyclopedia
Jellyfish or sea jellies are the informal common names given to the medusa-phase of certain gelatinous members of the subphylum Medusozoa, a major part of the phylum Cnidaria. Jellyfish are mainly free-swimming marine animals with umbrella-shaped bells and trailing tentacles, although a few are not mobile, being anchored to the seabed by stalks. The bell can pulsate to provide propulsion and highly efficient locomotion. The tentacles are armed with stinging cells and may be used to capture prey and defend against predators. Jellyfish have a complex life cycle; the medusa is normally the sexual phase, the planula larva can disperse widely and is followed by a sedentary polyp phase. — Wikipedia
Jellyfish (Encyclopædia Britannica)
Medusozoa is a clade in the phylum Cnidaria, and is often considered a subphylum. It includes the classes Hydrozoa, Scyphozoa, Staurozoa and Cubozoa, and possibly the parasitic Polypodiozoa. Medusozoans are distinguished by having a medusa stage in their often complex life cycle, a medusa typically being an umbrella-shaped body with stinging tentacles around the edge. With the exception of some Hydrozoa (and Polypodiozoa), all are called jellyfish in their free-swimming medusa phase. — Wikipedia
Medusozoa (Encyclopædia Britannica)
Jellyfish (One Zoom)
Medusozoa (WolframAlpha)
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Adventures
Explore related posts on Cosma …
- Great Blobs - This is the time of year when you see the words “Best of” quite a lot. No matter what you care about, someone somewhere is going to publish something about the “best of 2019” or even the “best of the decade” for that thing. For example, I pay a lot of attention to science, so … Continue reading Great Blobs
- Jellyfish Therapy - Feeling stressed out and need to relax? How about a nice swim in a swarm of jellyfish? What, that’s not a remedy for stress, you say! You mean by using imaginative thinking, right? Well, no, I do mean it literally. There’s an actual place called Jellyfish Lake on Eil Malk island in Palau where you … Continue reading Jellyfish Therapy
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Inspiration
Jelly Cam (Monterey Bay Aquarium)
Jellies Invasion Livestream (National Aquarium)
Livestream Jellies (Georgia Aquarium)
Talks about Jelly Fish (TED: Ideas Worth Spreading)
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Innovation
Science
Cnidariology is the subdiscipline of Zoology that consists of the study of Cnidaria. — Wikipedia
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Preservation
Library
DDC: 593.8 Jellyfish (Library Thing)
Subject: Jellyfish (Library Thing)
Subject: Jellyfish (Open Library)
LCC: QL 380 Jellyfish (UPenn Online Books)
Subject: Jellyfish (UPenn Online Books)
LCC: QL 380 Jellyfish (Library of Congress)
Subject: Jellyfish (Library of Congress)
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Participation
Education
MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources
Community
Occupation
Zoologists and Wildlife Biologists (CareerOneStop, U.S. Department of Labor, Employment and Training Administration)
Zoologists and Wildlife Biologists (Occupational Outlook Handbook, U.S. Bureau of Labor Statistics)
Zoo Careers (SeaWorld Parks & Entertainment)
Organization
Zoological Association of America
Association of Zoos and Aquariums
News
Jellyfish (EurekaAlert, American Association for the Advancement of Science)
Jellyfish (bioRxiv: Preprint Server for Biology, Cold Spring Harbor Laboratory)
Jellyfish (JSTOR)
Jellyfish (Science Daily)
Jellyfish (Science News)
Jellyfish (Phys.org)
Jellyfish (NPR Archives)
More News …
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
- Jellyfish reveal how rapid cell turnover may...on August 19, 2026 at 3:20 pm
Although increased cell proliferation is a hallmark of cancerous tissues, in some cases it may actually protect against tumor growth, according to a new study by Caltech researchers. Using mathematical models, the work suggests a new paradigm for the earliest stages of cancer development.
- Rangers and scientists map vulnerable reefs in...on August 12, 2026 at 6:00 pm
For thousands of years, the Anindilyakwa people have lived in deep connection with the waters surrounding Groote Eylandt, a remote island in the Gulf of Carpentaria.
- Black coral shapes influence how microscopic...on July 22, 2026 at 2:00 pm
An international research team led by scientists from the Max Planck Institute for Marine Microbiology in Bremen and the Leibniz Institute for Baltic Sea Research Warnemünde (IOW) investigated how the shape of black corals influences the functions of their cilia. The findings are published in the journal Communications Biology.
- Jellyfish nebula may be the scene of two stars...on July 21, 2026 at 8:30 pm
The star that formed the Jellyfish nebula may have had a partner star that exploded 100,000 years earlier, according to international researchers, who say that this may be the first known discovery of a binary star system in which both stars have gone supernova.
- Jellyfish videos reveal why science content...on July 12, 2026 at 11:00 pm
It can be easy to get sucked into social media for hours on end. Funny, cartoony science videos may be especially interesting, but not to everyone, according to a recent study from the University of Georgia.
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Related
Here are links to pages about closely related subjects.
Sphere Land, Ice, Water (Ocean), Air, Life (Cell, Gene)
Ecosystem Forest, Grassland, Desert, Arctic, Aquatic
Tree of Life
Microorganism Virus
Prokaryote Archaea, Bacteria
Eukaryote Protist, Fungi, Algae, Protozoa (Tardigrade)
Plant Flower, Tree
Animal
Invertebrate
Cnidaria Coral, Jellyfish
Cephalopod Cuttlefish, Octopus
Crustacean Lobster, Shrimp
Arachnid Spider, Scorpion
Insect Ant, Bee, Beetle, Butterfly
Vertebrate
Fish Seahorse, Ray, Shark
Amphibian Frog, Salamander
Reptile Turtle, Tortoise, Dinosaur
Bird Penguin, Ostrich, Owl, Crow, Parrot
Mammal Platypus, Bat, Mouse, Rabbit, Goat, Giraffe, Camel, Horse, Elephant, Mammoth
Walrus, Seal, Polar Bear, Bear, Panda, Cat, Tiger, Lion, Dog, Wolf
Cetacean Whale, Dolphin
Primate Monkey, Chimpanzee, Human
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1. The resources on this page are are organized by a classification scheme developed exclusively for Cosma.





