Jellyfish

BIU study reaveals that origin of sleeping in humans is deduced from jellyfish, sea anemones

A new study from the multidisciplinary brain research center at Bar-Ilan University found that jellyfish and sea anemones were the first to present one of sleep’s core functions.

THE NATURAL HABITAT of Cassiopea andromeda in the Gulf of Aqaba, Eilat.
WHITE-SPOTTED jellyfish are pictured at Lisbon Oceanarium in Lisbon on October 8, 2025.

Israeli toddler in critical condition after suffering jellyfish sting in Philippines - Ynet

Illustration: Jellyfish. Very weak swimmers, making escape from intake currents nearly impossible.

Jellyfish Invasion: How a Nuclear Power Plant Was Shut Down

 A jellyfish is seen near a boat by the coast of Haifa at the Mediterranean sea, Israel July 25, 2022.

A look at the jellyfish that swarm the coasts of Israel


Huge jellyfish, once coveting Israel's warmer seasons, seen off Israel's coast

Vast swathes of jellyfish, which typically flock to the Israeli coasts during summer, have been seen in great numbers this winter, signaling an abundant summer.

 A jellyfish is seen near a boat by the coast of Haifa at the Mediterranean sea, Israel July 25, 2022.

New spray can detect fingerprints in 10 seconds

A UK-Chinese team of scientists developed the biocompatible fluorescent spray from a jellyfish protein.

 Actual color fluorescent photographs of LFPs on different substrates developed by spraying with an aqueous solution of LFP-Red, Control-Red, LFP-Yellow, and Control-Yellow, respectively

A surprising swarm of jellyfish has reached the Haifa shores in winter

Jellyfish have been thought only to be a summer phenomenon, however, a surprising appearance of jellyfish in December has raised new questions.

 A huge swarm of jellyfish is seen as far as the eye can see in the Haifa Bay off the coast of Israel, on July 20, 2022.

Jellyfish can learn from past experiences despite having no brain – study

Jellyfish were able to learn where obstacles were placed and actively avoid them.

Jellyfish 370

Scientists find oldest fossilized jellyfish - study

These fossils are considered to be especially valuable as it is rare for jellyfish to fossilize because they are made up of 95% water.

Jellyfish 370

Israeli jellyfish experts predict a summer jellyfish-free on Israel's shores

Usually, at this time of the year, huge swarms of jellyfish would have already reached Israel’s beaches, but now, they're almost completely free of them.

Jellyfish 370

New box jellyfish species found in Hong Kong's waters - study

Box jellyfish, scientifically known as class Cubozoa, includes some of the highly venomous marine animals that are widely known in tropical waters, the study said.

AT LEAST eight types of Jellyfish populate Israeli waters, most of which don’t sting

Should we be concerned about this year's massive jellyfish swarm?

The unusually large pools of jellyfish sitting along Israel’s northern border are not an urgent cause of concern, said Prof. Dror Angel of the University of Haifa.

 A bloom of jellyfish along the Haifa coast.

Huge hordes of jellyfish spotted swarming around Haifa

Video showed untold thousands of jellyfish dotting the waters around Haifa as far as the eye can see.

 A huge swarm of jellyfish is seen as far as the eye can see in the Haifa Bay off the coast of Israel, on July 20, 2022.

Letters to the Editor: Benefit of the doubt

Readers of the Jerusalem Post have their say.

 Letters

Israel's jellyfish season arrives, might as well wade in and enjoy it

Where do Israel's jellyfish come from, what should you do if you get stung, and how long will they stay? We talked to some experts.

 Illustrative image of jellyfish.