Fish

The fish's movements, orientation, and location in the tank were translated into instructions for the wheels of the vehicle. The fish moves the car forward, backward, left and right.

Watch This Goldfish Drive an Aquarium on Wheels

The car was designed to move depending on the fish's location in its tank, showing animals can understand how to navigate foreign environments

Jørgen Botolfsen, pictured in 2020 outside Ballstad Fisk AS, where he helps process cod. “Bigger kids are stronger and faster,” he says.

In Norway, Kids Slice Out Cod Tongues for Serious Money

In the remote Lofoten Islands, youngsters are happy to embrace tradition by collecting the local delicacy and selling their wares

Approximately 315 different glaciers between British Columbia and Alaska have the potential to create new salmon habitat.

Melting Glaciers May Create 3,800 Miles of New Salmon Habitat by 2100

As the ice retreats, water could carve new streams in the thawed out land

When a surfer reported this fish on the beach, biologists rushed to see what it was. 

For the Third Time This Year, a Deep-Ocean 'Football' Fish Has Washed Ashore California's Beaches

Prior to this year, a beached specimen hadn't been seen since 2001

Though pikes (picture above) had the highest concentration of methylmercury in their bodies, they recovered faster than other species. 

Fish Can Recover Surprisingly Quickly From Mercury Pollution

If the chemical stops leaking into freshwater ecosystems, its concentration in some fish species can drop by more than 75 percent

Healthy reef habitats are usually alive with the diverse sounds of marine life.

Bizarre Fish Songs Raise Hope for Coral Reef Recovery

Audio recordings show a once-dying ecosystem has transformed into a lively soundscape

Other biodegradable bioplastics from algae, cornstarch, sawdust have lower emissions over their lifetime than regular oil-based plastics but still, need the energy provided by the fossil-fuel energy grid to manufacture.

Scientists Made an Eco-Friendly Plastic Using DNA From Salmon Sperm

The material requires 97 percent less carbon emissions to make than petroleum-based plastics

A growing body of work shows that marine animals are attracted to the sounds of healthy environments.

Playing Recordings of a Healthy Ocean Can Help Restore Marine Ecosystems

Scientists are using a 'fake it til you make it' approach to attract animals to coral reefs and other degraded habitats

The tentacled butterfly ray hadn’t been documented since 1986, but in 2019 Mohsen Rezaie-Atagholipour started finding them hidden as by-catch in Iranian shrimpers’ catch.

Presumed Extinct Tentacled Butterfly Ray Is Found

Scientists were shocked to find the species holding out in the water off Iran

Real guppies respond to Robofish—a 3D-printed plastic model with a vaguely realistic paint job—as if it were a real schoolmate. Researchers used different-sized Robofish to show that guppy schools tend to follow larger fish.

How Scientists Are Using Robotic Animals to Learn About Real Ones

Biomimetic bots can teach researchers a lot about how creatures interact in the natural world

The embryo of a small-spotted catshark, safe inside its egg case, is being raised at the aquarium Oceanogràfic València by Associació Lamna, a nonprofit that promotes shark conservation and research. At this stage, the young shark's gills are still external and it is growing from the sustenance provided in the yolk, visible at the bottom of the egg case.

Biologists Rescue Unborn Baby Sharks at Fish Markets

Scientists are collecting egg cases from recently caught pregnant sharks, raising the babies and releasing them into the wild

Cardiovascular disease is the leading cause of death for captive apes.

Ask Smithsonian

How Do Gorillas Get Heart Disease? And More Questions From Our Readers

You've got questions. We've got experts

Fishers gather rope and nets on a fishing boat in Gaza in May 2021. 

New Research

With Ropes and Nets, Fishing Fleets Contribute Significantly to Microplastic Pollution

Synthetic ropes release 'substantial amount' of plastic particles into the sea during each use, according to new research

A diver swims over a bleached section of the Great Barrier Reef near Heron Island.

The Planet Has Lost Half of Its Coral Reefs Since 1950

A new study finds dramatic declines in coral reef cover, biodiversity and fish abundance

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

The snail darter, a small fish that stopped construction of a federal dam project, is no longer threatened with extinction and can come off the Endangered Species List, wildlife officials say.

Trending Today

This Tiny, Endangered Fish Stopped Construction of a Federal Dam in 1975. Now, the Species Has Finally Recovered

The snail darter is no longer in threat of extinction and can be removed from the Endangered Species List

There are many reasons to be worried about the state of the world’s oceans. But some scientists say it’s important to point to successes, in order to motivate people to take further, evidence-based action.

Seven Reasons to Be Optimistic About the World's Oceans

The health of the ocean is under threat, but these good-news stories deserve attention too

The coastal critter was dubbed the sheepshead fish for the way its mouth resembles the muzzle of a sheep.

Sheepshead Fish With Human-Like Teeth Plucked From North Carolina Coast

The Atlantic coast swimmer uses its molars to crush the shells of various mollusks and crustaceans

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

An opah or moonfish that washed up on Sunset Beach in northern Oregon on July 14.

Brightly Colored, 100-Pound Moonfish Washes Up on Oregon Beach

Scientists say this open-ocean species, also known as an opah, typically inhabits warmer waters than those of the Pacific Northwest

loading icon