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Black hole brings down curtain on jellyfish galaxy's star turn
The role of an excited black hole in the death of an exotic 'jellyfish' galaxy will be presented today (July 3) by Callum Bellhouse of the University of Birmingham at the RAS National Astronomy Meeting in Lancaster. The supermassive black hole at the center of jellyfish galaxy JO201 is stripping away gas and throwing it out into space, accelerating suppression of star formation and effectively 'killing' the galaxy.  (2019-07-02)

Researchers sequence genomes of parasite that is actually a 'micro jellyfish'
This week in the Proceedings of the National Academy of Sciences, researchers at the University of Kansas will reveal how a jellyfish -- those commonplace sea pests with stinging tentacles -- have evolved over time into 'really weird' microscopic organisms, made of only a few cells, that live inside other animals. (2015-11-16)

New study shows the importance of jellyfish falls to deep-sea ecosystem
This week, researchers from University of Hawai'i, Norway, and the UK have shown with innovative experiments that a rise in jellyfish blooms near the ocean's surface may lead to jellyfish falls that are rapidly consumed by voracious deep-sea scavengers. Previous anecdotal studies suggested that deep-sea animals might avoid dead jellyfish, causing dead jellyfish from blooms to accumulate and undergo slow degradation by microbes, depleting oxygen at the seafloor and depriving fish and invertebrate scavengers. (2014-10-15)

Small fish exploits forbidding environment
Jellyfish moved into the oceans off the coast of southwest Africa when the sardine population crashed. Now another small fish is living in the oxygen-depleted zone part-time and turning the once ecologically dead-end jellyfish into dinner, according to an international team of scientists. (2010-07-15)

Predicting jellyfish 'invasions' at coastal power stations
Scientists at the University of Bristol are working with the energy industry to develop an 'early warning tool' to predict the sudden, en masse appearance of jellyfish swarms which can cause serious problems by clogging the water intakes of coastal power plants. (2016-10-11)

Jellyfish map could be the future to protecting UK waters and fish
A University of Southampton research team has developed a map of chemicals found in Jellyfish caught across 1 million square-kilometres of UK waters. The same chemicals are found in other marine animals such as birds and fish. These findings can support conservation efforts by helping track an animals movements and also be used as a tool to detect food fraud by identifying where seafood products were sourced from. (2019-01-16)

Long-term study links box jellyfish abundance, environmental variability at Waikiki Beach
Drawing on 14 years of monthly collection data, researchers at the University of Hawai'i at Manoa have found that the total number of box jellyfish that come ashore at Waikiki displayed no net increase or decrease, but instead followed an oscillating four-year pattern. Their abundance is likely influenced by climate fluctuations that play a role in large scale primary production in the ocean, regulating food availability and ultimately affecting the local numbers of box jellyfish. (2013-10-23)

First jellyfish genome reveals ancient beginnings of complex body plan
The first in-depth look at the genome of a jellyfish -- the moon jelly Aurelia aurita -- shows that early jellyfish recycled existing genes to gain the ability to morph from polyp to medusa. (2018-12-03)

A novel robotic jellyfish able to perform 3D jet propulsion and maneuvers
Jellyfishes in nature use jet propulsion to move through the water, which have been proven to be one of the most energetically efficient swimmers on the planet. Therefore, the movements of jellyfish have attracted significant interest over the past decade in the context of bioinspired underwater vehicle. Now researchers in Beijing have developed a novel robotic jellyfish able to perform vertical and horizontal jellyfish-like propulsion and maneuvers. (2019-08-05)

What makes a giant jellyfish's sting deadly
With summer on the way, and some beaches reopening after COVID-19 shutdowns, people will be taking to the ocean to cool off on a hot day. But those unlucky enough to encounter the giant jellyfish Nemopilema nomurai (also known as Nomura's jellyfish) might wish they had stayed on shore. Now, researchers reporting in ACS' Journal of Proteome Research have identified the key toxins that make the creature's venom deadly to some swimmers. (2020-06-10)

Jellyfish blooms transfer food energy from fish to bacteria
Jellyfish can be a nuisance to bathers and boaters in the Chesapeake Bay on the United States' East Coast and many other places along the world's coasts. (2011-06-08)

Well-wrapped feces allow lobsters to eat jellyfish stingers without injury
Lobsters eat jellyfish without harm from the venomous stingers due to a series of physical adaptations. Researchers from Hiroshima University examined lobster feces to discover that lobsters surround their servings of jellyfish in protective membranes that prevent the stingers from injecting their venom. The results are vial for aquaculture efforts to sustainably farm lobsters for diners around the world. (2016-08-25)

Jellyfish counterattack in winter
A study carried out over 50 years by an international team, with the participation of the Balearic Oceanography Center of the Spanish Institute of Oceanography has confirmed an increase in the size and intensity of proliferations of the jellyfish Pelagia noctiluca. There are several complex reasons for this -- over-fishing and the current increase in sea water temperatures. (2010-12-13)

How a box jellyfish catches fish
The first feeding study of tropical Australia's Irukandji box jellyfish has found that they actively fish. They attract larval fish by twitching their extended tentacles, highlighting their nematocyst clusters (stinging structures) and using them as lures. It's an impressive feat by any standards, but particularly so for an animal that doesn't have a defined brain. (2015-06-02)

Giant jellies invade Gulf of Mexico threatening shrimp fishery
Giant 'jellies' - up to two feet in diameter - have taken up residence in the northern Gulf of Mexico. Known as the 'Spotted Jellyfish, ' these creatures don't threaten swimmers however, the jellies' threat to the area's ecosystems is yet to be determined. Similar alien jellyfish have caused major disruptions in marine fisheries in Europe - in some cases driving out other marine life. (2000-08-08)

Irukandji threat to southern waters
Researchers from Griffith University's Australian Rivers Institute have conducted a series of climate change simulation experiments to investigate whether the dangerous tropical jellyfish, the Irukandji, is likely to establish breeding populations in the South East. It was found that while higher sea temperatures could provide an opportunity for adult Irukandji to expand their range south, increasing ocean acidification may inhibit the development of juveniles. (2013-10-28)

The pig, the fish and the jellyfish: Tracing nervous disorders in humans
The pig, the jellyfish and the zebrafish have been used to gain a greater understanding of hereditary forms of diseases affecting the nervous system. In this project the focus was on a specific gene in pigs, SYN1, which encodes the protein synapsin, which is involved in communication between nerve cells. Synapsin almost exclusively occurs in nerve cells in the brain. Parts of the gene can thus be used to control an expression of genes connected to hereditary versions of the nerve disorders. (2013-10-17)

Signs of sleep seen in jellyfish
The upside-down jellyfish Cassiopea demonstrates the three hallmarks of sleep and represents the first example of sleep in animals without a brain, HHMI researchers report. (2017-09-21)

Tel Aviv Univ discovery may redefine classifications in the animal kingdom
Tel Aviv University researchers have found that a close cousin of the jellyfish has evolved over time into a microscopic parasite. The finding represents the first case of extreme evolutionary degeneration of an animal body. (2015-11-18)

Virginia Tech researchers publish study on jellyfish energy consumption that will improve bio-inspired robotic designs for Navy
Jellyfish are one of the most energetically efficient natural propulsors on the planet, according to Shashank Priya, professor of mechanical engineering at Virginia Tech. He led a study highlighting the motion of the jellyfish. The work appeared in a recent issue of the Proceedings of the National Academy of Sciences. (2013-10-17)

Jellyfish-inspired soft robots can outswim their natural counterparts
Engineering researchers have developed soft robots inspired by jellyfish that can outswim their real-life counterparts. More practically, the new jellyfish-bots highlight a technique that uses pre-stressed polymers to make soft robots more powerful. (2020-07-01)

Fireflies and jellyfish help illuminate quest for cause of infertility
Genes taken from fireflies and jellyfish are literally shedding light on possible causes of infertility and autoimmune diseases in humans. Scientists are using the luminescent and fluorescent genes to illuminate cells that produce a hormone linked to conditions, which include rheumatoid arthritis and lupus. (2009-03-27)

Populated Puget Sound sees stark shifts in marine fish species
The most populated areas of Puget Sound have experienced striking shifts in marine species, with declines in herring and smelt that have long provided food for other marine life and big increases in the catch of jellyfish, which contribute far less to the food chain, according to new research that tracks species over the last 40 years. (2015-05-07)

Releasing our inner jellyfish in the fight against infection
How mucus genes dating back to our time as a jellyfish could be key in our quest for new antibiotics. (2018-07-09)

Injured jellyfish seek to regain symmetry
Self-repair is extremely important for living things. Get a cut on your finger and your skin can make new cells to heal the wound; lose your tail -- if you are a particular kind of lizard -- and tissue regeneration may produce a new one. Now, Caltech researchers have discovered a previously unknown self-repair mechanism -- the reorganization of existing anatomy to regain symmetry -- in a certain species of jellyfish. (2015-06-15)

Researchers unveil large robotic jellyfish that one day could patrol oceans
Virginia Tech College of Engineering researchers have unveiled Cyro, a life-like, autonomous robotic jellyfish the size and weight of a grown man, five foot seven inches in length and weighing 170 pounds. (2013-03-28)

Researchers unveil robot jellyfish built on nanotechnology
Researchers at the University of Texas at Dallas and Virginia Tech have created an undersea vehicle inspired by the common jellyfish that runs on renewable energy and could be used in ocean rescue and surveillance missions. (2012-03-23)

Unique report details dermatological progression and effective treatment of a severe jellyfish sting
A detailed case report and comprehensive sequence of photographs in Wilderness & Environmental Medicine, published by Elsevier, document the dermatological progression of a patient stung by a jellyfish off the coast of Cambodia. The aim of this report is to guide clinicians and patients to understand what to expect after such a sting and steps to increase the probability of a full recovery. (2019-09-05)

Sodium channels evolved before animals' nervous systems, research shows
An essential component of animal nervous systems -- sodium channels -- evolved prior to the evolution of those systems, researchers from the University of Texas at Austin have discovered. (2011-05-17)

Deadly box jellyfish antidote discovered using CRISPR genome editing
Researchers studying how pain works at the University of Sydney have discovered an antidote to the deadly sting delivered by the most venomous creature on Earth -- the Australian box jellyfish. A single sting to a human causes necrosis of the skin, excruciating pain and, if the dose of venom is large enough, cardiac arrest and death within minutes. The new antidote, discovered using CRISPR genome editing techniques, blocks the symptoms within 15 minutes after contact. (2019-04-30)

A leopard may not change its spots but venomous creatures change their venom recipe often
For a long time scientists believed that an animal's venom was consistent over time. However, through a close study of sea anemones, Dr. Yehu Moran of Hebrew University found that animals change their venom several times over the course of a lifetime, adapting the potency and makeup of their venom to suit changing predators and aquatic environments. (2018-03-05)

Scientists unravel evolution of highly toxic box jellyfish
With thousands of stinging cells that can emit deadly venom from tentacles that can reach ten feet in length, the 50 or so species of box jellyfish have long been of interest to scientists and to the public. Yet little has been known about the evolution of this early branch in the animal tree of life. In a paper published today, researchers have unraveled the evolutionary relationships among the various species of box jellyfish, thereby providing insight into the evolution of their toxicity. (2009-11-18)

Stinging water mystery solved: Jellyfish can sting swimmers, prey with 'mucus grenades'
In warm coastal waters around the world, swimmers can often spot large groups of jellyfish pulsing on the seafloor. It is best to avoid areas that upside-down jellyfish inhabit: getting close can lead to irritating stings, even without contact. Researchers have taken a close look at the cause of this mysterious 'stinging water.' Now, a team of scientists reports in Nature Communications Biology on the culprit -- a toxin-filled mucus the jellyfish release into the water. (2020-02-13)

Artificial jellyfish swims in a heartbeat
A team of researchers at Harvard University and the California Institute of Technology have turned inanimate silicone and living cardiac muscle cells into a freely swimming (2012-07-22)

Marine invasive species benefiting from rising carbon dioxide levels
Ocean acidification may well be helping invasive species of algae, jellyfish, crabs and shellfish to move to new areas of the planet with damaging consequences, according to the findings of a new report. (2015-11-06)

Quest for jellyfish robot leads to discovery of bending rules for animal wing, fin tips
A Navy-sponsored project to design a biologically inspired, swimming jellyfish robot has led scientists to the surprising discovery of common bending rules for the tips of wings, fins, flukes, mollusk feet, and other propulsors across a broad range of animal species. (2014-02-18)

Jellyfish contain no calories, so why do they still attract predators?
New study shows that jellyfish are an important food source for many animals. As jellyfish blooms become more frequent and more massive, this could affect marine ecosystems. (2020-06-24)

To push or to pull? How many-limbed marine organisms swim
Couinter-intuitively, small marine animals don't use their limbs or propulsors to push themselves through the water while swimming. Instead, their appendages create negative pressure behind them that pulls the animal through the water, scientists from the Marine Biological Laboratory report. (2020-11-24)

Fishing for photos of rare or unknown deep-sea creatures with an electronic jellyfish lure
Using a new lighted jellyfish lure and a unique camera system, researchers from HARBOR BRANCH are working to reveal for the first time life in the deep sea unaltered by the cacophony of sound and light that have been an integral part of most past research there. From Sept 2-5 a team will be using the lure for the first time in the dark depths of California's Monterey Bay. (2003-09-02)

If it wiggles, it must be jellyfish swimming -- or atoms moving in glass
The Lehigh University materials scientist, in winning the Otto Schott Research Award, is commended for (2007-07-03)

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