Fish

Lake sturgeons have a striking appearance with their shark-like tails, five rows of bony plates lining their brownish grey bodies called "scutes", and their whisker-like barbels below their rounded snout.

Biologists Catch Enormous 'Real Life River Monster' in Michigan

The seven-foot-long female lake sturgeon was microchipped and released promptly back into the water

Great white sharks travel hundreds of miles to specific locations in the world’s oceans.

New Evidence Suggests Sharks Use Earth's Magnetic Field to Navigate

Bonnethead sharks swam in the direction of their home waters when placed in a tank charged with an electromagnetic field

A beaver peers out of a Hancock live trap after being captured by Molly Alves, a biologist with the Tulalip Tribe in Washington.

Scientists Are Relocating Nuisance Beavers to Help Salmon

When the rodents are moved from backyards to wild areas, they make their new watersheds better for fish

British schoolchildren dig into a lunch of fish sticks in 1974. Since its debut in 1953, the frozen food has proved to be a hit among kids and adults, owing to its palatability, low cost, and convenience.

The Surprising Success Story of Fish Sticks

The 1950s convenience food has enjoyed a winning streak—no less so than during the Covid-19 pandemic

The female sawfish (pictured) is 16 feet long and estimated to weigh between 800 and 1,000 pounds. It's the longest smalltooth sawfish ever measured by scientists.

Record-Breaking 16-Foot-Long Sawfish Washes Ashore in the Florida Keys

In a rare occurrence, a second 12-foot-long juvenile sawfish was found dead on a different beach in the state during the same week

A study of ten narwhal tusks reveals how the animals are responding to a swiftly changing Arctic.

Study of Narwhal Tusks Reveals a Swiftly Changing Arctic

Chemical analysis of ten tusks shows shifting diets and increasing levels of mercury as climate change warms the polar region

Skipjack tuna at a fish market in the Philippines

How Will Commercial Fishing Pressure Affect Skipjack Tuna?

The world’s most abundant tuna is resilient, but can the fish outswim our demand?

The marine sediments that bottom trawlers stir up like underwater rototillers are the largest storehouse of carbon on the planet.

Seafloor Trawl Fishing May Release as Much Carbon as Air Travel

A new study finds the carbon released when bottom trawlers stir up the seafloor is equal to the emissions of the entire aviation industry

Ocean creatures are noisier than scientists first thought.

Biologist Marie Fish Catalogued the Sounds of the Ocean for the World to Hear

Scientists once thought marine life kept quiet. Then the Navy tapped an aptly named researcher with an open mind

Partially protected areas are often proposed as a way to bolster marine life and to improve people’s enjoyment of the ocean—neither of which seems to be happening.

Partially Protected Marine Areas Have Little Benefit, Scientists Say

Compared to fully safeguarded marine protected areas, the zones don't show a lot of positive effects for marine life or people’s enjoyment

Photos of the kitefin shark glowing in the dark.

Nearly Six-Foot-Long Glowing Shark Discovered in Deep Sea Off New Zealand

The kitefin shark is one of three species of glowing sharks described in a new paper

The Oyapock river, between Brazil and French Guiana, is one of the few waterways that a new paper identifies as being relatively undamaged by humans.

One-Third of Freshwater Fish Species Are at Risk of Extinction

Humans have severely damaged more than half of the world’s rivers

Researchers in France are testing which fish eggs are best suited to being launched to the moon. So far, European seabass are among the leaders.

Could Astronauts Rear Fish on the Moon?

Researchers in France aim to boldly farm fish where no one has farmed fish before

In Singapore, a city-state notoriously tight on space, Apollo Aquaculture Group is building an eight-story indoor aquaculture facility.

An Eight-Story Fish Farm Will Bring Locally Produced Food to Singapore

The massive indoor aquaculture facility is an effort to boost food security for the small island city-state

Zebrafish are classic study animals for understanding genetics and development.

A Single Altered Gene Can Make Fish Fins More Like Limbs

Researchers find a mutation that offers clues to the ancient sea-to-land transition of vertebrates

An oceanic whitetip shark swimming in the open ocean. This species was common in the 1970s but its population has since declined by 98 percent, according to a new study.

Oceanic Sharks and Rays Have Declined 70% Since 1970

Fishing fleets have indiscriminately slaughtered sharks for decades and a new study catalogues the environmental damage done

Three adult gray whales photographed via drone in 2017, 2018 and 2019 in Laguna San Ignacio off the coast of Mexico. The three shots show increasingly skinny whales, a bad sign for an animal that needs to make a 10,000-mile return trip to reach its feeding grounds.

Nearly 400 Gray Whales Have Died Off the West Coast Since 2019

Scientists say the die-off, which is entering its third year, is likely due to a scarcity of food in the animals’ cold water feeding grounds

An Australian lungfish (Neoceratodus forsteri) at the Haus des Meeres in Vienna, Austria.

Australian Lungfish Has Biggest Genome Ever Sequenced

The air-breathing fish dethrones the Mexican axolotl for the title of largest known genome in the animal kingdom

Each fish-inspired robot uses two wide-angle cameras to look for the LEDs on its companions.

These 3-D Printed Robot Fish Sync and Swim

The small water-bound robots use wide-angle cameras and three bright LEDs to move in synchronized swarms

The basking shark's scientific name, Cetorhinus maximus, approximately translates to "big-nosed marine monster."

Twenty-Six-Foot-Long Basking Shark Washes Up on Maine Beach

Though often mistaken for great whites, these sea creatures are filter feeders and gentle giants of the sea

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