Chilling Forecast: Jellyfish Set To Dominate Arctic Waters by 2050
New AWI research reveals that jellyfish in the Arctic Ocean are benefiting from climate change and expanding further north. Climate change is exerting immense pressure…
Jellyfish News
Jellyfish are gelatinous marine animals belonging to the phylum Cnidaria, known for their umbrella-shaped bells and trailing tentacles. They are found in oceans worldwide, from shallow coastal waters to the deep sea. Jellyfish tentacles are equipped with specialized cells called cnidocytes, which contain nematocysts—tiny, spring-loaded mechanisms that can inject venom into their prey or predators. This venom can vary in potency, with effects ranging from a mild sting to severe, sometimes life-threatening reactions in humans. Jellyfish are important ecological components, serving as both predators and prey within marine food webs. They feed primarily on small fish, plankton, and other jellyfish, and their populations can sometimes explode in numbers, leading to blooms that may disrupt local marine ecosystems and human activities, such as fishing and tourism. Despite their simple anatomy, jellyfish have complex life cycles that often include both sexual and asexual phases.
Scientists Discover Mysterious New Species of Medusa in a Remote Location in Japan
The creature has been observed just twice within the depths of the Sumisu Caldera, a volcanic formation in the Ogasawara Islands. The scientist was part…
Regenerative Superpower Uncovered: How Jellyfish Tentacles Grow Back in Days
Japanese scientists have uncovered that Cladonema jellyfish regenerate tentacles using stem-like proliferative cells, offering new insights into the blastema formation process and its evolutionary parallels…
Brainless Brilliance: Jellyfish Stun Scientists With Learning Skills
Jellyfish Learning Abilities: Challenging Neuroscientific Notions Even without a central brain, jellyfish can learn from past experiences like humans, mice, and flies, scientists report for…
No Brain, No Problem: The Surprising Intellect of Jellyfish Changes Our Fundamental Understanding of the Brain
Jellyfish are more advanced than once thought. A new study from the University of Copenhagen has demonstrated that Caribbean box jellyfish can learn at a…
Landmark Discovery of the Oldest Known Swimming Jellyfish – 505 Million Years Old
505-million-year-old swimming jellyfish from the Burgess Shale highlights diversity in Cambrian ecosystem. The Royal Ontario Museum (ROM) has announced the discovery of the oldest known…
Peering Into the Inner Workings of Evolution With Jellyfish Eyes
Some jellyfish have simple eyes; some have complex ones. Other jellyfish have no eyes at all. Indeed, recent research has shown jellyfish eyes in different…
Caltech Researchers Read a Jellyfish’s Mind
The human brain has 100 billion neurons, making 100 trillion connections. Understanding the precise circuits of brain cells that orchestrate all of our day-to-day behaviors—such…
World’s Most Efficient Swimmer: Jellyfish Create a “Virtual Wall” to Enhance Performance
New research led by the University of South Florida has uncovered one of the reasons jellyfish have come to be known as the “world’s most…
Researchers Create Bionic Jellyfish That Swim Faster and More Efficiently
Researchers at Caltech and Stanford use microelectronics to enhance jellyfish swimming. Engineers at Caltech and Stanford University have developed a tiny prosthetic that enables jellyfish…
Scientists Reveal Cellular Mechanisms That Give Jellyfish Remarkable “Superpowers”
Jellyfish are animals that possess the unique ability to regenerate body parts. A team of Japanese scientists has now revealed the cellular mechanisms that give…
New Ultra-Soft Robotic Gripper Safely Catches Jellyfish [Video]
Providing a gentle grip on gelatinous creatures, a new ultra-soft underwater gripper safely catches and releases jellyfish without damage. Jellyfish are about 95% water, making…
Sea Anemones Adapt Their Venom to Accommodate Changing Prey and Sea Conditions
Many animals use venom to protect themselves from predators and to catch prey. Some, like jellyfish, have tentacles, while others, like bees and snakes use…
Jellyfish-Inspired Microchip Can Be Used to Capture Cancer Cells
Scientists have built a jellyfish-inspired microchip that can capture cancer and other rare cells in human blood. The scientists published their findings in the journal…
Medusoid, A Tissue-Engineered Jellyfish with the Ability to Swim
After thoroughly studying jellyfish propulsion, including the arrangement of their muscles, how their bodies contract and recoil, and how fluid-dynamic effects help or hinder their…
RoboJelly May Patrol Oceans, Clean Oil Spills and Detect Pollutants
Researchers are working on autonomous robot jellyfish that will conduct military surveillance, clean oil spills, and monitor the environment. The robotic creatures are called RoboJelly,…
New Study Questions the Claims of Worldwide Increased Jellyfish Blooms
New research from an international team of scientists challenges the claim that the world’s oceans are experiencing increases in jellyfish due to human activities such…
Jellyfish Bloom in Marine Ecologies As Ocean Health Declines
Last year, surfers were surprised at the amount of stinging moon jellyfish, some of which reached the size of bicycle wheels, which washed towards shore…