Oceans

German researchers tested dolphins' ability to detect electric fields.

Bottlenose Dolphins May Have an Electric Sense, Study Finds

Dimples called vibrissal pits on the beaks of the mammals can perceive electricity and might help with hunting and navigation

Atlantic bluefin tuna circle a holding pen near Malta. The Mediterranean Sea and the Gulf of Mexico were long thought to be the only locales where the massively valuable fish spawns.

Bluefin Tuna Get Busy Off North Carolina

The extremely valuable fish likely spawn in a patch of the Atlantic Ocean called the Slope Sea

After several attempts to dolphin-proof the bait, the team finally figured out a solution: a mesh bait pouch.

Watch Dolphins Outsmart Crab Traps in First-Ever Footage

Bottlenose dolphins in Australia have been snatching fish used to bait crabs—and adapting to fishers' attempts to thwart them

Taylor Swift performing during her record-breaking Eras Tour.

Taylor Swift-Themed Cruise Sets Sail Next Year

The four-night sailing is organized by Swifties, though the singer-songwriter herself won't be on board

This is the only known first-class Titanic dinner menu of its kind from April 11, 1912.

Titanic Passengers Dined in Style Before Disaster Struck

A water-stained first-class dinner menu dated April 11, 1912 just sold for more than $100,000

Meteorological records from USS Pennsylvania, seen here off the Virginia coast in 1927, helped fill a gap in 20th century marine weather records.

How Citizen Scientists Rescued Crucial World War II Weather Data

Newly declassified documents from the Pacific theater have been digitized and could improve climate models

Italian officials suspect they recovered between 30,000 and 50,000 bronze coins.

Divers Discover Tens of Thousands of Ancient Coins Off the Coast of Italy

Their fourth-century find also hints at the possible presence of a shipwreck hidden nearby

Orcas are highly social and are likely learning the boat-ramming behavior from one another.

Orcas Sink Another Boat in the Strait of Gibraltar

The crew is safe, but the marine mammals did so much damage to the Polish sailing yacht that it couldn't make it back to port

Basilosaurus hunts fish.

Ancient Whales Were the Biggest and Smallest of Their Kind to Ever Roam the Oceans

New discoveries show how whale diversity exploded after the dinosaurs disappeared

After making headlines this summer for "stealing" surfboards in Santa Cruz, the California sea otter known as 841 has been spotted with a new pup.

California's Surfboard-Stealing Sea Otter Has Given Birth to a Pup

Otter 841 made headlines for her “unusual” behavior this summer, which biologists now say could’ve been related to pregnancy hormones

Atlantic salmon spend most of their lives in the cool waters of the ocean. When they venture upstream in freshwater rivers to spawn, however, they encounter challenging warmer waters.

Engineers Create 'Air Conditioning' for Salmon With Chilled Patches of River Water

Wild Atlantic salmon can struggle with heat as they swim upstream to spawn—but artificial "thermal refuges" may help them cool off

The female Pacific footballfish measured about 14 inches long.

Rare Deep-Sea Anglerfish Washes Up on a California Beach

The finding marks the second time in three years that an elusive Pacific footballfish has been found on the sand at Crystal Cove State Park

North Atlantic right whales face threats of entanglement in fishing gear and injuries caused by ships.

North Atlantic Right Whale Numbers May Be Stabilizing at Last

After a decade of decline, the latest population estimate is good news—but conservationists say we "have a long ways to go" to safeguard the marine mammals

Ice shelves are important because they help keep ice on land from flowing into the ocean as quickly.

Rapid Melting of West Antarctic Ice Shelves Is 'Unavoidable,' Study Finds

Even under a best-case climate scenario, global sea levels will likely rise because of this accelerated melting, scientists say

Alaska canceled its snow crab harvest for two seasons in a row.

Why Ten Billion Snow Crabs Disappeared Off the Coast of Alaska

The unprecedented die-off represents roughly 90 percent of the eastern Bering Sea population

Early humans in Europe snacked on seaweed and aquatic plants for thousands of years, though how they prepared and ate them is unclear.

Early Europeans Ate Seaweed for Thousands of Years

Researchers found biomarkers of seaweed and other aquatic plants in samples of dental plaque

Mass Audubon's science coordinator Mark Faherty examines a horseshoe crab in Pleasant Bay, where he has conducted research on them for years.

New Synthetic Horseshoe Crab Blood Could Mean Pharma Won't Bleed the Species Dry

The “living fossils” have been vital for testing intravenous drugs, but a few large pharmaceutical companies are using a lab-made compound instead

Could this innovation provide a solution to one of our era’s biggest scourges?

Scientists Have Created Synthetic Sponges That Soak Up Microplastics

Made from starch and gelatin, the biodegradable sponges remove as much as 90 percent of microplastics in tap water and seawater

A killer whale in the Salish Sea is observed harassing a porpoise.

Why Do Orcas Keep Harassing Porpoises?

An endangered group of killer whales in the Pacific Northwest has been toying with porpoises for decades—and new research offers some possible explanations

Adult dugong swimming and feeding in the shallow water of the Red Sea. 

Dugong Populations Are Declining in the Great Barrier Reef, Study Finds

Destruction of seagrass habitats and "indiscriminate" gillnet fishing have both contributed to the marine mammals' dropping numbers, scientists say

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