Biggest in photo is just over 3 inches across. In recent decades jellyfish populations in some parts of the world have boomed. In the 1980s a comb jelly that’s known formally as Mnemiopsis ...

Jellyfish Lake in Palau is a one-of-a-kind snorkeling destination that allows visitors to swim alongside millions of ...

Dr. Angel Yanagihara, a marine biologist at the University of Hawaii at Manoa, and the world's foremost expert on box jellyfish, says that the box jellyfish does not release venom like a rattlesnake.

The immortal jellyfish, known as Turritopsis dohrnii, has the ability to reverse age and theoretically live an eternal life.

The discovery, aided by the spectacular nickname 'immortal jellyfish', captured the world's attention. T. dohrnii may bend the rules to rejuvenate itself, but it can't always cheat death. For example, ...

Hundreds of jellyfish threaten to shut down an Israeli power plant every summer. In recent years, several other power plants around the world have faced the same threat. More from Science Hundreds ...

Jellyfish, the wobbly wonders of the ocean, often astound with their unique shapes, sizes, and stings. Learn more about these marine marvels as we dive deeper into the underwater world.

Opinions expressed by Forbes Contributors are their own. I write about the world of biology. Jellyfish are among the ocean’s most incredible inhabitants, boasting a wide array of forms and ...

Jellyfish have survived for over 500 million years, making them more ancient than the dinosaurs. Today these otherworldly creatures can be found around the world, from coastal shallows to the ocean ...

"The idea was to get hold of an organism that's globally distributed, and that would be exposed to these conditions in the real world," she explained. Because the jellyfish the team studied are so ...