If one were to mention December 25th, most people, regardless of their religious affiliation, would probably think of Christmas. How about October 31st? That’s right: Halloween. February 14th? You got ...

Here are the U.S. beaches with the most jellyfish stings, plus which species are common, and expert tips on how to avoid and ...

A new species of venomous Portuguese man-of-war, Physalia mikazuki, has been discovered in northern Japan. Genetic evidence ...

Climate change is putting countless marine organisms under pressure. However, jellyfish in the world’s oceans could actually benefit from the rising water temperatures – also and especially in the ...

Climate change is warming ocean waters, making the environment more acidic thanks to the absorption of carbon dioxide from the atmosphere. This endangers various marine species, and monitoring those ...

University of Colorado Boulder Professor Nicole Xu is developing biohybrid robotic jellyfish by integrating tiny microelectronic systems into the live animals. Xu has about 15 to 20 moon jellyfish in ...

Art often imitates life, and sometimes animals do, too. The enormous jellyfish seen in this YouTube video bears a striking ...

The Portuguese man-of-war, or Physalia, is a jelly-like creature that uses a special gas-filled balloon to float on the sea ...

Jellyfish behaving badly -- At the mercy of jellyfish -- Some astonishing ecological impacts -- Jellyfish completely out of control -- Jellyfish, planetary doom, and other trivia -- Jellyfish: the ...

Why it matters: The ocean is Earth's largest climate regulator, but its vast size makes it notoriously difficult (and expensive) to study. Biohybrid technology, which merges living organisms with ...