When deep-sea explorers from the Schmidt Ocean Institute went on expedition off the coast of Argentina, they were amazed to see an enormous creature floating through the gloom: a giant phantom ...

Often mistaken for their more dangerous relatives, the delicate by-the-wind sailors are largely harmless and rely on wind to ...

The investigative minds at How to Survive rank the world's most toxic stingers, from the Box Jellyfish to the Irukandji, and ...

Discover safe methods to survive a jellyfish sting.

TEXAS, USA — A couple of strange-looking jellyfish spotted on North Padre Island this week turned out to be Atlantic box jellyfish, according to researchers with the Harte Research Institute. Jace ...

Box jellyfish get their name from their cube-shaped bell, with long tentacles trailing from each corner. When alive in the water, those tentacles can stretch several feet. "Unlike most jellyfish, they ...

Freshwater jellyfish were first reported in Oklahoma in 1930. Recorded locations include Elmer Thomas, Stroud Lake, Tenkiller, Grand Lake, Texoma, Wetumka, Broken Bow Reservoir, Robert S. Kerr, as ...

The elusive deep-sea creature typically lives over 1,000 meters below sea level, but was seen around 250 meters below sea level Scientists filmed a rare giant phantom jellyfish off Argentina during a ...

An upside-down jellyfish drifts in a shallow lagoon, rhythmically contracting its translucent bell. By night that beat drops from roughly 36 pulses a minute to nearer 30, and the animal slips into a ...

University of Cambridge and Anglia Ruskin University (ARU) provide funding as members of The Conversation UK. An upside-down jellyfish drifts in a shallow lagoon, rhythmically contracting its ...

Turns out jellyfish and sea anemones – among the ancient creatures with a nervous system instead of a brain – have a very similar sleeping routine to our own. A new study published in Nature ...

Humans began sleeping as a way to partly help reduce DNA damage in nerve cells, scientists at Bar-Ilan University in Israel discovered while studying jellyfish and sea anemones. Both species sleep for ...