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 ...

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 ...

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 ...

An underwater videographer has just published mesmerizing footage of the world’s largest, longest, and heaviest known jellyfish species—a lion’s mane jelly. “Several minutes into the dive, I noticed a ...

CORPUS CHRISTI, Texas — A surge of moon jellyfish washed ashore along Coastal Bend beaches over the weekend, creating both social media buzz and safety concerns for beachgoers. RELATED: From the ...

In the Mediterranean, researchers have studied a jellyfish that bends the rules of aging. The jellyfish is called Turritopsis dohrnii. It is no bigger than a fingernail, yet it can revert from its ...

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 ...

Multiple massive, rare jellyfish washed up on the Texas coast recently, surprising some beachgoers and feasting on a smaller jellyfish species. Jace Tunnell, the director of community engagement at ...

University of Colorado Boulder Professor Nicole Xu is developing biohybrid robotic jellyfish by integrating tiny microelectronic systems into the live animals. Xu has about 15 to 20 moon jellyfish in ...

A swarm of jellyfish has shut down a reactor at one of France's biggest nuclear power stations after swimming inside a series of filters in the water pumping station. Electricity production at the ...