Fish

Fortunately, the driver suffered only minor injuries when a tanker truck of salmon rolled onto its roof in Oregon.

77,000 Young Salmon Were Dumped Into the Wrong Creek After a Truck Crashed in Oregon

The spring Chinook salmon smolts should still be able to find their way to the Pacific Ocean and help boost the threatened population of the fish, officials say, though another 25,000 salmon died in the accident

Wildlife biologists are trying to figure out what's killing smalltooth sawfish and other species in Florida.

Florida Fish Are Mysteriously Dying After 'Spinning and Whirling,' and Scientists Can't Explain It

The abnormal behavior has raised special concerns about the endangered smalltooth sawfish, an odd-looking ray with chainsaw-like teeth, as 28 of them have died

The otherworldly form of the octopus has inspired millennia of fear and awe from humans.

Ten Wild Facts About Octopuses: They Have Three Hearts, Big Brains and Blue Blood

These bizarre creatures have been around for hundreds of millions of years, and for humans, they’ve inspired horror, admiration and culinary prestige

Wildlife officials released 830,000 fall-run Chinook salmon fry into Fall Creek. A large but unknown number of them died as they passed through a tunnel on the Klamath River.

Hundreds of Thousands of Salmon Die After Release in Northern California's Klamath River

The juvenile Chinook salmon likely died from pressure changes as they swam through an old tunnel in the Iron Gate Dam, slated to be removed this year as part of a massive demolition project

An orca hunting sea lion pups on an Argentinian beach in 2006. Before the recent study, killer whales had only been observed hunting white sharks in groups.

Single Orca Spotted Killing a Great White Shark for the First Time Ever

In less than two minutes, the marine mammal attacked a juvenile white shark and ripped out its liver in an encounter off the coast of South Africa last year

A Brazilian flea toad sits on a Brazilian real. The coin is 27 millimeters across.

The World's Smallest Vertebrate Is a Tiny Brazilian Frog, Study Finds

Adult male Brazilian flea toads are just over 7 millimeters long on average, and females measure about 8.15 millimeters

Because the fish are translucent and they lack skulls, they're a favorite research subject of neuroscientists.

This Tiny Fish Can Make Sounds That Rival an Airplane or an Elephant—Now, Scientists Know How

Transparent and just half an inch long, male Danionella cerebrum can make noises of more than 140 decibels

Northern gannets plunge into the water to hunt in Shetland. This image won the British Waters Wide Angle category.

See 15 Otherworldly Images From the Underwater Photographer of the Year Awards

A hunting monkey, 'kissing' scorpionfish and playful dolphins feature in just a few of the 130 striking photographs distinguished with honors in the competition

Charlotte, a round stingray, was determined to be pregnant, despite not having a male ray companion for at least eight years.

A Female Stingray That Hasn't Had a Mate in Eight Years Is Mysteriously Pregnant. Is a Shark the Father?

Though the round stingray, named Charlotte, shares her aquarium tank with two male sharks, experts say it is impossible for a shark to impregnate a ray

A mother humpback whale and calf are seen off the coast of Brazil.

Earth’s Migratory Animals Are in Peril, According to U.N. Report

The Convention on Migratory Species warns that many birds, mammals and fish face numerous threats, but they can be saved

An artist’s illustration of Glikmanius careforum swimming beneath Troglocladodus trimblei in ancient waters.

Paleontologists Discover Two New Shark Species From Fossils in Mammoth Cave National Park

The "active predators" prowled the oceans more than 325 million years ago, before the time of Pangea

Common clownfish have three white stripes, which they "count" to identify other members of their species as potential threats, a new study suggests.

Clownfish Can 'Count' Stripes on Other Fish to Identify Intruders, Study Suggests

Notoriously aggressive, common clownfish may be using basic mathematics to determine if another fish is a friend or foe

A great white shark cruises through Atlantic waters.

Fifty Years After ‘Jaws,’ We’ve Learned a Lot About Great Whites

Though sport fishing tournaments and other activities led to population declines in the 1970s and 1980s, more recent science and conservation efforts have helped the sharks rebound

One possible explanation for the low-frequency noises? Mating black drum fish.

Mysterious Bass Sounds Irking Florida Residents Might Just Be Fish Mating Loudly

The Tampa community raised money to fund an investigation, and now, a local scientist will install underwater microphones to look for the source of the racket

The shark, which researchers suggest is a newborn great white, seen off California's coast in July 2023.

'Extremely Rare' Sighting of Newborn Great White Shark Reported Off California Coast

If confirmed, the discovery could shed light on where the sharks give birth and mate, which has remained mysterious to scientists

An oak peacock moth lands on a window behind dancing wedding guests, illuminated in red light. This photograph won the category for butterflies and dragonflies.

See 11 Winning Images From the Close-Up Photographer of the Year Awards

Focused on little details of animals and plants, these stunning shots spotlight the world’s tiny wonders

Iron Gate Dam in Hornbrook, California, on the Klamath River

The Largest Dam Removal Project in U.S. History Begins Final Stretch, Welcoming Salmon Home

After being impeded by dams for more than a century, the Klamath River will be restored to its historic channel this year

A museum curator gives a sense of scale to the reconstructed jaws of the fossil shark Otodus megalodon.

Was Megalodon Slimmer Than Previously Thought?

A new study has spurred scientists to debate the shape of prehistory’s biggest shark

Bottom trawling is a polarizing fishing practice that involves dragging heavy nets and equipment across the seafloor.

Seabed Trawling May Be Spewing Huge Amounts of CO2 Into the Atmosphere

New research suggests the controversial fishing method is also contributing to increased ocean acidification, which can harm marine wildlife

Poor sad blobfish, voted the world’s ugliest animal.

In Defense of the Blobfish: The 'World's Ugliest Animal' Is Our Fault

The distinguished blobfish has been judged unfairly

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