This Crazy Jellyfish Has No Tentacles, But Its Sting Is Nasty

Meet Keesingia gigas, one of a pair of new species of Irukandji jellyfish recently discovered off the coast of Western Australia. It's confusing researchers because it appears not to have any tentacles. » 8/20/14 4:10pm 8/20/14 4:10pm

This Microscopic Footage Shows What Happens When A Jellyfish Stings You

Cnidarians like anemones and jellyfish extend nematocysts, stinging organelles capable of shooting venom into another creature. The nematocysts are too small and move too quickly to be seen by the naked eye—but now they've been captured through a microscope with a high-speed camera. » 8/18/14 9:40am 8/18/14 9:40am

Nerve cells may have evolved in animals twice

Ctenophores, also known as the "comb jellies", are an ancient phyla of animals. They have no HOX genes, at least some of which are present in every other animal except themselves and sponges. They lack many of the basic immune system adaptations common to all other animals, including sponges. » 5/27/14 10:16am 5/27/14 10:16am

The Jellyfish Borealis Is The Most Striking Sight In The Alien Sky

Bao's father told him that it was a shame that he would never see the Northern Lights back on Earth, but Bao thought it a shame that the folks back on Earth would never see the twin flights of the luminous fleets of jelly-ships as they circled the planet. » 5/16/14 8:00pm 5/16/14 8:00pm

An unknown species of giant jellyfish has washed ashore in Tasmania

Over the past several years, marine biologists in Tasmania have been receiving calls about strange jellyfish sightings. Now, one of these unclassified creatures has finally washed up on shore — and it's a weird slimy beast, indeed. » 2/06/14 8:40am 2/06/14 8:40am

The "bizarre experiment" that became a flying jellyfish robot

Small flying robots often take design cues from the flapping wings of insects and birds. But this robot prototype, pictured above, doesn't move like any wind-loving creature here on Earth — instead, it flies like the jellyfish swims. And the story of its invention is pretty weird. » 1/17/14 8:00am 1/17/14 8:00am

Your oldest living relative is a jelly, not a sponge. An active debate among zoologists as to which ancient creature is the first true animal was just settled after an analysis of the comb jelly genome. Turns out we are descended from these ctenophores — a species that emerged 700 million years ago — and not sea… » 12/13/13 4:00pm 12/13/13 4:00pm

Ice cream made with jellyfish protein glows when you lick it

Artisanal ice cream sometimes contains unusual ingredients, like foie gras, blue cheese, or horseradish, but Lick Me I'm Delicious' latest ice cream innovation contains jellyfish protein, not for its flavor, but for its luminescent properties. » 11/04/13 4:00pm 11/04/13 4:00pm

Jellyfish developed in space have trouble getting around on Earth

What are the consequences of growing up in space? Well, if you're a jellyfish, once you find yourself subject to Earth's gravity, you may have more trouble swimming than your counterparts who were born on Earth. » 10/19/13 9:30am 10/19/13 9:30am

Jellyfish may be the most energy-efficient animals in the world

Jellyfish are known for their ability to take over ecosystems, even though they're less efficient swimmers and hunters than their fishy competition. But a new study shows that jellyfish may rule the waves by actually being the most energy-efficient animals in the world. Here's how. » 10/09/13 9:00am 10/09/13 9:00am

Transgenic silkworms spin glowing fluorescent silk

If your greatest problem with your silk clothes is that they don't look impressive enough under black light, you're in luck. Researchers in Japan have genetically engineered silkworms that spin silk that glows under fluorescent light. » 6/22/13 11:30am 6/22/13 11:30am

Could this "immortal" jellyfish unlock the secret to human life…

Nathan Rich of the New York Times has put together an article about the apparent "immortal" jellyfish, Turritopsis dohrnii, and how insights into its lifecycle could eventually lead to powerful rejuvenation therapies for humans. Not only is this article a must-read from the perspective of radical life extension, it's… » 11/29/12 1:40pm 11/29/12 1:40pm

Easily the most insane animal footage ever caught on an undersea camera

If you thought those submersible videos of swordfish and sperm whales were something special, here's something right out of The Abyss. » 5/08/12 9:40pm 5/08/12 9:40pm

When the Earth is uninhabited, this robotic jellyfish will still be…

Virginia Tech and the University of Texas at Dallas have claimed their place as the leading purveyor of robot-based nautical doom with robojelly, a robot that simulates the look and the move of a cnidarian. » 3/21/12 6:15am 3/21/12 6:15am

Hydra don't need brains or even eyes to see

It's hard to imagine an organism much simpler than the hydra. It doesn't have brains, hearts, or eyes - it's basically just tentacles with a mouth attached. And yet these simple creatures pull of biological feats no other animal can. » 3/05/12 3:56pm 3/05/12 3:56pm

This photo of the super-jellyfish? It's a lie.

Have you seen this picture? Apparently it's been floating around on the internet for a while now, but has experienced something of a comeback as of late, usually with some version of the following caption: » 1/25/12 3:30pm 1/25/12 3:30pm

Genetically engineered cell becomes world's first living laser

It looks like we're one step closer to having laser vision (or at least, laser-based diagnostic and therapeutic techniques). Researchers at Harvard Medical School and Massachusetts General Hospital in Boston have genetically engineered the world's first "living laser." That's right - a living cell can shoot laser… » 6/13/11 1:22pm 6/13/11 1:22pm

Fish live in fear of deadly jellyfish poop

Generally speaking, poop isn't pleasant, but it also isn't exactly lethal. But every year jellyfish unleash bowel movements so deadly that they can destroy entire marine ecosystems. A little odor doesn't seem so bad all of a sudden, does it? » 6/12/11 1:00pm 6/12/11 1:00pm