Jellyfish

Rare box jellyfish spotted in Red Sea waters

Although the jellyfish's sting can be painful, it is not the deadly species known from Australia, and there is no reason to avoid swimming – Just be alert.

A rare box jellyfish, the Red Sea, July 2026
A US Air Force F-15 fighter jet during an exercise, March 28, 2023; illustrative.

F-15 pilot saw Iran's 'jellyfish' drone formation when jet was shot down during Epic Fury - report

Jellyfish in Tel Aviv

The jellyfish are already here: This is what you must know before entering the sea

A jellyfish at Ashkelon beach

No panic: How to properly treat a jellyfish sting


Rare giant phantom jellyfish found near Argentina during early February mission

The jellyfish has a bell size of up to one meter in diameter, and its four arms can reach lengths of up to about ten meters.

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

BIU study reveals 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.

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

The Israeli family was located near an island in Palawan Province when the three-year-old child was stung.

WHITE-SPOTTED jellyfish are pictured at Lisbon Oceanarium in Lisbon on October 8, 2025.

Jellyfish Invasion: How a Nuclear Power Plant Was Shut Down

“The automatic shutdown resulted from a massive and unpredictable presence of jellyfish that reduced seawater flow to the reactors,” said the power operator.

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

A look at the jellyfish that swarm the coasts of Israel

Sea bathers have already reported encounters with various types of jellyfish. 

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

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