Jellyfish, Anemones & Relatives

A bonaire banded box jellyfish, Tamoya ohboya

Box Jellyfish: One Species at a Time

In this episode of the Podcast of Life , learn how three fiery, painful stings during an early morning swim in Hawaii changed the life of researcher Angel Yanagihara. Once the young biochemist had...

Encounters with Bioluminescent Creatures

Scientists describe the amazing bioluminescent creatures they encounter as they descend into the deep--siphonophores, ctenophores, and viperfish--in this Smithsonian/History Channel "Deep Ocean Explorers" video excerpt. If you like this video, watch the full 14-minute...
A tiny larval (baby) starfish.

The Invisible Loss: The Impacts of Oil You Do Not See

A tiny larval (baby) starfish. Credit: Dr. Allison J. Gong, UC Santa Cruz Since late April, the world has watched a devastating oil spill from a BP drilling rig spread throughout the Gulf of...
Overfishing is leading to an abundance of less desirable species like jellyfish.

Peanut Butter and Jellyfish

With more desirable species being fished out and jellyfish blooming, will jellyfish sandwiches soon be on the menu? Credit: David Beck / Jennifer Jacquet All over the world, people have been witnessing gigantic blooms...

ROV Video of Stunning Creatures

Using an ROV (Remotely-Operated Vehicle) equipped with a high-definition video camera, scientists can observe the life that flourishes beneath the Arctic ice . On this expedition, they discovered creatures, like this Narcomedusa jelly ,...
red paper lantern jellyfish

Red Paper Lantern Jellyfish: One Species at a Time

The Encyclopedia of Life brings us a new installment of the podcast, One Species at a Time . Vacuumed up from its habitat a mile down in the ocean, the red paper lantern jelly...

Blue Water Diving with WHOI

"Inside the Open Ocean: Blue Water Diving" produced by Woods Hole Oceanographic Institution (WHOI) , describes a specialized diving technique that lets biologists study the ocean's most fragile beings--soft, transparent animals such as jellyfish...
Photograph of the underside of a gelatinous octopus with a bright yellow bioluminescent ring around her mouth.

Bioluminescent Animals Photo Gallery

Bioluminescence is one of the more captivating adaptations that have evolved in marine animals. It's the ability of organisms to create and emit light. Dive underwater and you may witness lightshows of red, green,...
A large ship flushes water from its ballast tanks while at sea

5 Invasive Species You Should Know

A ship flushes and refills its ballast task in mid-ocean to prevent marine organisms from moving from one port to another. Credit: Smithsonian Environmental Research Center Regardless of what continent you live on, the...

A Ctenophore Feeds

The comb jelly (ctenophore) Thalassocalyce inconstans is found in shallow to deep water in the Atlantic Ocean, Mediterranean Sea, and sometimes in warmer Pacific Ocean waters off the coast of California -- although this...
Chrysaora melanaster is a jellyfish found in the Arctic.

Jellyfish and Comb Jellies

Jellyfish and comb jellies are gelatinous animals that drift through the ocean's water column around the world. They are both beautiful—the jellyfish with their pulsating bells and long, trailing tentacles, and the comb jellies...

Underwater Photography Contest from University of Miami’s Rosenstiel School

Every year the University of Miami's Rosenstiel School of Marine and Atmospheric Science hosts an underwater photography contest for amateur photographers. From playful marine mammals to hard-to-see invertebrates, these photos capture beautiful underwater scenes...

Blackwater Drifting

Some of the most otherworldly animals—like those straight from a science fiction story—can be seen in the open ocean at night. By drifting in the blackwater in a scuba suit just under the surface,...
A variety of jellyfish

It’s All in the (Jellyfish) Family

They may not all look the same, but cnidarians all have cells that are specially designed for stinging. Credit: Allen Collins, Smithsonian By Kalila Morsink With their huge number of venomous stinging cells, jellyfish...

The Secret Life of Plankton

Imagine if a fish at the market could tell you where it came from; what would it say? "I came from a world of drifters," says one fish in this video. The world of...

Jellyfish predate dinosaurs. How have they survived so long?

Gelatinous drifters that move in a mesmerizing way, jellyfish are beautiful creatures. But take a closer look and you'll see there's more to these creatures than a pretty picture. Some shoot a deadly venom,...

Slow Life: Time-Lapse on the Coral Reef

How does a coral spend its day? Most of us would say: not doing much. To the human eye, a coral looks relatively still, waiting in the current and hoping some food will run...
A bloom of moon jellies.

A Bloom of Moon Jellies

In recent years, blooms of jellyfish, such as these moon jellies ( Aurita aurita ) in the Chesapeake Bay, have become more common around the world for a number of different reasons . One...