Fish

Divers saw nine species of game fish and soft coral starting to grow on the submerged cars last month.

No Longer Full of Commuters, Atlanta's Old Subway Cars Are Now Filled With Fish

Two Metropolitan Atlanta Rapid Transit Authority railcars were added to an artificial reef off the coast of Georgia to create more wildlife habitat

This rare leucistic green sea turtle was discovered among nests, supported by local conservation efforts, in Papua New Guinea’s Conflict Islands.

See 15 Stunning Images From the Ocean Photographer of the Year Awards

The winning and highly commended underwater photography spotlights breathtaking animal behavior, conservation needs and the otherworldly environment of Earth's oceans

Bluestreak cleaner wrasse eat parasites off other fish at coral reefs.

These Tiny Fish Will Assess Themselves in a Mirror Before Taking on a Foe

New findings suggest bluestreak cleaner wrasse understand how their body size stacks up against a rival

Japanese eels use burrowing and swimming motions to move around the seafloor—and to escape from inside the stomach of a predator.

Watch Eels Make a Great Escape From a Fish's Stomach After Being Swallowed Alive

For the first time, scientists witnessed Japanese eels free themselves from the stomach of a predatory fish in X-ray video footage

The blind side of a Remo flounder's head as it was being dissected

These Fish Transformed Their Dorsal Fins Into Taste Buds

From tasting to hunting to hitching a ride, some fins have evolved for a variety of uses beyond swimming

A mother manatee and her calf in Florida's Crystal River amid eelgrass, which is crucial for supporting the large mammals.

See 13 Captivating Images From the Wildlife Photographer of the Year Contest

The highly commended shots provide a preview of the 60th annual competition, which spotlights astounding animal behaviors and the conservation issues they face

The doomed porbeagle shark, just after being tagged and released by researchers in 2020.

Scientists Solve a 'Murder Mystery' After a Pregnant, Tagged Shark Got Eaten

It's rare for apex predators to become prey, but researchers suggest they've documented the first known case of a porbeagle shark getting consumed by another animal

The ocean sunfish (Mola mola) is one of several unusual-looking sea creatures to wash ashore in Oregon so far this summer.

Five-Foot-Long Ocean Sunfish Washes Ashore in Oregon, a 'Relatively Small' Size for Its Species

It's the second sunfish to be found dead on the beach in a small region of northwestern Oregon this summer, following the discovery of an even rarer hoodwinker sunfish

Kayakers, researchers, lifeguards and paddleboarders managed to get the huge fish to shore.

Rare 'Doomsday' Oarfish Surfaces in California, Just the 20th Discovered in the State Since 1901

Kayakers spotted and hauled ashore the 12-foot-long oarfish, a deep-sea species known for its connection to earthquakes in Japanese folklore

The South American lungfish (Lepidosiren paradoxa) has the largest known genome of the animal kingdom at 91 billion base pairs of DNA.

The World's Largest Animal Genome Belongs to an Odd, Air-Breathing Fish

Scientists sequenced the 91 billion base pairs in the South American lungfish’s genome, setting a record and revealing insights into vertebrate evolution

The colorful mosaic depicts brightly colored dolphins and fish.

Archaeologists Stumble Upon a 2,000-Year-Old Dolphin Mosaic in England

The Roman-era artwork was likely preserved thanks to a remodeling project in the third or fourth century C.E.

PaleoScan operates at Plácido Cidade Nuvens Museum of Paleontology (known by the Portuguese abbreviation MPPCN) in Brazil. For a typical procedure, multiple fossils are placed together on the calibration board to be scanned simultaneously.

This Innovative Device Allows South American Paleontologists to Share Fossils With the World

PaleoScan offers scientists at far-flung institutions a less expensive way to digitize their collections and preserve at-risk specimens of fish, turtles, pterosaurs and more

A new study of giant danios (not pictured) suggests schools of fish save 79 percent more energy in turbulent conditions than fish swimming individually.

Swimming in Schools May Help Fish Save Energy in Turbulent Waters

A new study suggests schooling fish use up to 79 percent less energy in rough conditions than fish that swim alone

The Brazilian sharpnose sharks were purchased from fishers between September 2021 and August 2023.

Thirteen Sharks Test Positive for Cocaine Off the Coast of Brazil

All of the wild Brazilian sharpnose sharks tested in a new study had the drug in their bodies, but many questions remain about cocaine's effects on aquatic creatures—and the humans who eat them

A fake foot helps researchers at California State University, Long Beach, determine how stingrays react when they come in contact with people.

When Do Stingrays Strike?

A California researcher and his team simulate stepping on round rays to learn more about their behavior

The behemoth carcass has attracted lots of curious onlookers to Gearhart Beach.

See the Rare, 2,000-Pound Hoodwinker Sunfish That Washed Ashore in Oregon

The species was only described in 2017 after "hiding in plain sight" for nearly three centuries

Monarchs, some frogs and other animals feed on toxic plants or bugs for protection

A Poisonous Diet Gives These Animals Their Own Toxic Defense

From monarchs to sea slugs, various creatures consume chemicals that keep predators at bay

One of the new benthic landers is lowered into the Gulf of Mexico via a system of winches and safety lines. Once released, the autonomous platform sinks at a carefully calculated rate until it lands on the seafloor.

These Innovative Landers Will Examine Coral Reefs in the Gulf of Mexico

Scientists plan to use what they learn to help restore communities harmed by the Deepwater Horizon oil spill

Charlotte is a round stingray, a species named for its circular, disk-shaped body.

'Pregnant Virgin' Stingray Won't Give Birth After All—Here's Why

Charlotte, a female round stingray in North Carolina who has gathered a legion of online fans, is no longer pregnant due to a "rare reproductive disease"

Bufoceratias wedli, a deep-sea anglerfish

Bizarre Sex Helped Anglerfish Diversify and Dominate the Deep Sea, Study Suggests

Some of these fish perform obligate parasitism, in which males attach to—and then fuse bodies with—the much-larger females

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