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Oceans

Divers visited the site between 2022 and 2024.

New Research

Archaeologists Discover Mysterious 7,000-Year-Old Stone Wall Beneath the Waves Off the Coast of France

The sturdy, well-built structure was likely constructed on dry land at a time when sea levels were much lower than they are today

The Hjortspring boat is displayed at the National Museum of Denmark.

New Research

The Mysterious Hjortspring Boat That Sank in Denmark 2,400 Years Ago Is Still Revealing Its Secrets

New research suggests indicates that Scandinavia’s oldest known example of a wooden plank boat may have sailed to attack the island of Als from the east, indicating a planned effort

Orcas and dolphins might hang out together off the coast of British Columbia to hunt for food as a team, new research suggests.

Watch These Orcas Follow Dolphins to Snag a Salmon Feast. It Might Be the First Evidence of These Species Working Together

Off the coast of British Columbia, killer whales are tailing dolphins, and both seem to be rewarded with fishy meals. But not everyone is convinced it’s teamwork—and the behavior may hint at other ocean stressors

Researchers think the Greek graffiti found on the boat dates to the first century C.E.

Cool Finds

Archaeologists Discover 2,000-Year-Old Ancient Egyptian Pleasure Boat That May Have Once Made Luxurious Voyages Along the Nile

Unearthed off the coast of Alexandria, the vessel may have once measured 115 feet long. Experts think it would have held a “luxuriously decorated cabin” and a team of 20 rowers

Juvenile sunflower sea stars at the Sunflower Star Laboratory in Moss Landing, California. At this phase, each is less than an inch wide, but they can grow to be more than three feet across as adults.

A Deadly Pathogen Decimated Sunflower Sea Stars. Look Inside the Lab Working to Bring Them Back by Freezing and Thawing Their Larvae

For the first time, scientists have cryopreserved and revived the larvae of a sea star species. The breakthrough, made with the giant pink star, gives hope the technique could be repeated to save the imperiled predator

The study inventoried thousands of mollusks, worms, crustaceans and other small marine creatures. 

Deep-Sea Mining Test in the Pacific Drastically Reduced Biodiversity and Animal Populations

The Metals Company wants to be the first firm to commercially mine the seafloor. The study it funded suggests that mining vehicles harm creatures in the machines’ paths

An illustration of ancient sea cows

A Trove of Sea Cow Fossils in Qatar Reveals a New Species That Munched on Seagrass 21 Million Years Ago

The findings suggest that sea cows have been engineering ecosystems in the Persian Gulf for tens of millions of years

Smithsonian magazine's picks for best photography books of 2025 include Birds of a Feather, Blue Sun and Trembling Earth.

The Best Books of 2025

The Ten Best Photography Books of 2025

Our favorite titles this year invite readers to take in the beauty of nature and our cultural rituals

Seabirds are just some of the marine animals known to eat plastic. 

More Than 1,200 Marine Animal Species Eat Plastic. Ingesting Even a Tiny Amount Can Kill Them, a New Study Suggests

Researchers examined more than 10,000 animal autopsies to figure out how much plastic is too much for ocean wildlife

Concrete Coral by artist Leandro Erlich features 22 concrete cars submerged roughly 20 feet deep about 780 feet off the coast of Miami Beach.

Art Meets Science

Miami Beach’s Newest Art Installation Is Underwater—and It Doubles as a Habitat for Fish and Coral

Crews lowered 22 concrete cars to the ocean floor to create “Concrete Coral,” an installation by artist Leandro Erlich. The piece is the first phase of a project called REEFLINE

Remoras hitch a ride on a humpback whale.

Watch Suckerfish Hitch a Wild Ride on Humpback Whales in Rare Video Footage

Suckerfish—also known as remoras—are harmless, but the whales didn’t seem to be fans of their hitchhiking

The new world of information supplied by drones hovering above is allowing researchers to more easily measure whale size, body condition and health; to identify individual animals from features on their bodies; and more.

From Collecting Whale Snot to Capturing Surprising Behaviors, Aerial Drones Are Giving Scientists a New View of Sea Life

The robots can hover over marine mammals and gather all sorts of information in a way that’s less invasive to the animals than researchers trying to approach them by boat or plane

Debra Brown found the bottle on Wharton Beach near her home in Esperance, Western Australia.

Cool Finds

109-Year-Old Messages in a Bottle Written by Soldiers Heading to Fight in World War I Discovered on Australian Beach

The two letters survived the past century inside a Schweppes-brand bottle, which Debra Brown found on Wharton Beach in early October

While seaching for Ernest Shackleton's lost ship Endurance in 2019, researchers stumbled across clusters of indentations on the seafloor.

Researchers Found Hundreds of Mysterious Dimples on the Seafloor Near Antarctica. Now They Know What Creature Made Them

The indentations are nests of fish called yellowfin notie, and they are not randomly scattered—rather, they appear to have been arranged in distinct patterns

The orcas went after the juvenile great white sharks’ livers, which are rich in nutrients and high in calories. Here, an orca swims alongside a wounded shark.

Orcas in Mexico Have Learned to Attack Young Great White Sharks—by Flipping Them Upside Down and Eating Their Livers

Researchers captured the novel behavior on video in the Gulf of California, recording three separate takedowns across two hunts carried out by members of the Moctezuma pod

The newly discovered carnivorous "death-ball sponge" 

Researchers Discover ‘Death Ball’ Sponge and Dozens of Other Bizarre Deep-Sea Creatures in the Southern Ocean

So far, two expeditions have yielded 30 new species—and researchers say there’s more to come

Gloria Acevedo, a diver with the Sirenas de Oriente in Mexico, removes a fishing line from coral near Cozumel Island.

‘Ghost Gear,’ or Abandoned Fishing Equipment, Is Haunting the Oceans. Here’s How Conservationists Are Fighting Back

Discarded nets, lines and traps are a hazard to marine life and ecosystems around the world, but pioneering programs are tackling the problem creatively through education, prevention, ocean cleanups and recycling

Bowhead whales' cold-water habitats help the animals make more CIRBP protein.  

Bowhead Whales Live Long Lives. Do They Hold the Key to Human Longevity?

A cold-activated gene that helps the mammals repair their DNA may also help humans live longer

The otter-surfer interaction last Wednesday 

‘Feisty’ Otters Are Once Again Hijacking Surfboards in Santa Cruz

Is the playful otter stealing surfboards a repeat offender?

Sea otters use their agile, grippy forepaws to capture and pull apart prey. Raising their paws and back flippers out of the water also helps them stay warm.

Sea Otters May Be Small Marine Mammals, But Their Effect on an Ecosystem Can Be Huge

Their fur is so soft it almost led to their extinction, but otters’ recovery has been a boon to Pacific kelp forests, a key habitat for other sealife

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