Jellyfish

Hammerhead sharks have are considered critically endangered.

More Than a Third of Shark Species Are Now Threatened With Extinction

Overfishing, habitat loss and climate change are behind the 'desperate' decline

A perfect storm of high demand clashing with supply chain issues, worker shortage and delivery problems is forcing restaurant owners to raise seafood prices on their menus.

Seafood Prices Soar Amid Supply Chain Issues and Worker Shortage

As demand for fish rises, restaurants are slammed with employment losses, port congestion, lack of product, rising costs and shipment snags

This jellyfish, Scolionema suvaense, was raised in the National Museum of Natural History’s Invertebrate Zoology “AquaRoom.” Here, the species is sinking through food with its tentacles spread wide.

Smithsonian Voices

Live Jellyfish Make a Splash in Marine Education

Smithsonian's AquaRoom helps scientists learn more about these animals’ lives and educate future generations about their marine neighbors

A viral video shows an octopus (not pictured) lashing out at an Australian tourist in shallow water.

A Very Angry Octopus Goes Viral After Lashing Out at an Australian Tourist

A video posted to social media captures the cephalopod's arm-flinging attack

This year's top ten titles explore the cosmos, fear and cleanliness alongside narratives about owls, fish and eels.

The Ten Best Science Books of 2020

New titles explore the mysterious lives of eels, the science of fear and our connections to the stars

These 'Elvis Worms' Shimmer and Sparkle—and Fight Rough

New research describes four species of iridescent deep-sea creatures that sparkle like bedazzled Elvis Presley jumpsuits

Comb jelly larvae, highlighted by red arrows, shown inside an adult.

New Research

Invasive Comb Jellies Might Overproduce Babies in Summer to Eat Them in Winter

Comb jellies might have evolved to eat their young when prey runs out, but some experts are skeptical of the strategy

The full fossil with the body of the squid on the left and the fish to the right.

Cool Finds

200-Million-Year-Old Fossil Captures Squid Viciously Entangled With Its Prey

The specimen may be the earliest known example of a squid-like creature on the attack

Researchers have discovered an unexpected way that larger bits of plastic are transformed into microplastics in the sea: lobsters. (The study involved Norway lobsters, pictured here.)

Norway Lobsters Crush Ocean Plastic Into Even Smaller Pieces—and That's Bad

The crustaceans' guts pulverize plastics into tiny bits that can be consumed by even smaller creatures at the base of the ocean food chain

Three Cassiopea, or upside-down jellyfish, seen from above in a lab at the Smithsonian’s National Museum of Natural History. The cloudy matter floating above and to the left of the jellyfish is a mucus that they exude.

These Jellyfish Don't Need Tentacles to Deliver a Toxic Sting

Smithsonian scientists discovered that tiny 'mucus grenades' are responsible for a mysterious phenomenon known as 'stinging water'

A two-month-old filefish collected in the survey surrounded by plastic bits.

New Research

Newly Identified Fish Nurseries Are Choked With Plastic

Larval fish congregate in surface slicks, which contain plankton—and 126 times more plastic than surrounding waters

Cool Finds

These Newly Discovered Shrimp Call a Whale Shark's Mouth Home

Found in a whale shark off Okinawa, hundred of amphipods were living it up in the giant fish's gills

The two divers spent an hour or so swimming alongside the giant barrel jellyfish.

Divers Encounter a Human-Size Jellyfish Off the Coast of England

Barrel jellyfish typically grow to a length of up to 3 feet, but this one measured closer to 5 feet long

In Asia, many jellyfish species find their way into cuisine. The largely tasteless animals are used predominately for their texture.

To Make Jellyfish More Appetizing, Add Light and Sound Effects to the Dining Experience

Gastrophysicists are going to great lengths to convince Westerners to indulge in the tasteless sustainable seafood

The experience unfolds across five rooms: the Recycle Bank, the Coral Tunnel, the Net Guard, the Jellyfish Station and the Bubble Mall.

Art Meets Science

A New Pop-Up Exhibit in NYC Immerses Visitors in a Deep-Sea Experience

Designer Randy Fernando says the show strives to be "interactive and playful," while also "incorporating touches of activism"

New Research

Your Oldest Ancestor Was Probably Sponge Like

A new study may settle a long-running debate about which creature was the first to evolve from a universal common animal ancestor

Cool Finds

Surprising Footage Captures Arctic Jellyfish Lurking Under the Ice

The creatures were previously thought not tough enough to survive the harsh winters

Cassiopea jellyfish resting "upside-down" in their tank

New Research

Even Without a Brain, Jellyfish Still Need to Sleep

These simple, ancient creatures show just how deeply rooted sleep may be in the animal kingdom

The tentacles of the Portuguese man o' war, (which is technically a siphonophore, a group related to jellyfish), contain harpoon-like cells called nematocysts that deliver painful doses of venom.

Forget What You've Heard About the Pee Cure, Here's How to Really Fix a Jellyfish Sting

Scientists studied what to do and what not to do when stung by a jellyfish. The result? Folk remedies are bad.

Are creatures like this at the bottom of animals' family tree?

New Research

Scientists Think Comb Jellies May Have Come Before All Other Animals

Sorry, sponges—there’s a new oldest ancestor in town