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 ...

These rare sea creatures live where the sun don't shine. By Laura Baisas Published Jan 6, 2026 4:15 PM EST Get the Popular Science daily newsletter💡 Breakthroughs ...

Jellyfish seem to sleep for about 8 hours a day, take midday naps and snooze more after a bad night’s sleep – just like us. Sleep is thought to have first evolved in marine creatures like these, and ...

New box jellyfish species have been documented in the Philippines, which scientists noted as a vital contribution to the country’s growing database of marine biodiversity. Through on-site observation, ...

An unusual jellyfish found in tropical oceans has amazed scientists because it can reverse its own life cycle and avoid death. This rare ability allows the creature to return to an earlier stage of ...

RICHFIELD, Minn. — When you think of jellyfish, you’re likely imagining a marine jellyfish capable of inflicting a painful sting on humans and potential predators. You’re likely not envisioning a tiny ...

It pulsed like a tiny heartbeat — a clear, quarter-sized jellyfish rising through the calm water of Taft Lake, sunlight flickering through its translucent body. The sight stopped Kate Lucas mid-paddle ...

Texas beaches are experiencing a rise in sightings of the massive, rare Australian white-spotted jellyfish. One beachgoer found a 16-inch jellyfish along the shores of Padre Island National Seashore ...

Blurring the line between biology and robotics, Chinese scientists are taking biomimicry to new depths with a small, low-energy bionic jellyfish that's so lifelike in form and movement it’s almost ...

OKLAHOMA CITY (KFOR) – It’s something you’d expect to find in the ocean, but jellyfish have been spotted floating in Oklahoma lakes. “Jellyfish in Oklahoma waters is definitely possible, and it’s ...