Fish

Only in recent decades have researchers found that the fish have been gliding through the sea floors for hundreds of millions of years.

Rare Baby Ghost Shark Caught in New Zealand's Chatham Rise

There are about 52 known species of chimaera, half of which were discovered in the last two decades

Reconstruction of debris surging into the Tanis River as impact spherules rain down from the sky. A dinosaur tries to get away from the disaster.

Asteroid That Decimated the Dinosaurs Struck in Spring

Clues from fossil fish help scientists pinpoint the season when Earth’s fifth mass extinction began

Researchers attached green LED lights along the gillnet float line to keep unwanted marine animals from getting stuck.

Lit-Up Fishing Nets Dramatically Reduce Catch of Unwanted Sharks, Rays and Squid

Decorated nets entrapped fewer undesirable animals without significantly impacting the amount of target fish caught

Threats like hunting, habitat loss and the pesticide DDT contributed to the bald eagle's decline.

After 35 Years of Recovery Efforts, Bald Eagles Are No Longer Considered Endangered in Vermont

The state first listed the raptors as endangered in 1987

Scientists built this synthetic fish using paper, plastic, gelatin and human heart cells.

Scientists Build an Artificial Fish That Swims on Its Own Using Human Heart Cells

The experiment could advance pacemaker technology and bring science closer to developing artificial hearts for people

Seasonal influxes of fishermen fed roaring local economies and attracted herring girls—women who came from across Iceland to take jobs gutting, cleaning and salting barrels of freshly caught fish.

How Iceland's Herring Girls Helped Bring Equality to the Island Nation

Between the 1910s and 1960s, thousands of young women formed the backbone of the country's thriving fishing industry

Fisheries biologists caught invasive armored catfish in Houston bayous in 2017. 

More Than 400 Invasive Fish Dumped From Aquariums Found in Texas River

Plecos, or suckermouth armored catfish, are efficient, algae-eating tank cleaners, but they are native to South America with few natural predators

Seahorses build a strong pair bond—but if the couple is forcibly separated, they are more than willing to move on.

Seahorses Aren't as Committed as Previously Thought

Pair bonds between the fish aren't as strong as you think

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.

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

You've got questions. We've got experts

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