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Oceans

Blue pieces of microplastic viewed under a microscope alongside dust, minerals and charcoal collected from a park in Idaho.

New Research

Airborne Microplastics ‘Now Spiral Around the Globe’

Researchers find the tiny synthetic particles can stay aloft for nearly a week and travel large distances in the wind

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

As many as 70 orcas cooperatively hunted, killed and ate a roughly 50-foot long blue whale last month off the coast of Australia.

More Than 50 Orcas Hunt and Kill Blue Whale Off Australian Coast

This is one of just a handful of times that orcas have ever been recorded killing a blue whale

During the dive mission, the divers found and captured footage of the ship's bridge, midsection, and bow that had hull number "557" still visible on both sides.

Explorers Survey World’s Deepest Known Shipwreck

The American destroyer U.S.S. Johnston sank on October 25, 1944, during the Battle of Leyte Gulf in the Philippine Sea

It’s hard to smell them underwater, but corals, like all living things, release a range of volatile chemicals.

Why Are Scientists Studying Coral’s Smell?

Gassy chemicals may tell tales of coral health and climate change

A viral video shows an octopus (not pictured) lashing out at an Australian tourist in shallow water.

A Very Angry Octopus Goes Viral After Lashing Out at an Australian Tourist

A video posted to social media captures the cephalopod’s arm-flinging attack

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

New Research

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

An illustration of the ancient shark Edestus heinrichi preying on a fish. Many ancient sharks had different jaws than modern sharks.

These Prehistoric Sharks Had Jaws Shaped Like Circular Saws and Sawtoothed Scissors

CT scans and visualization tools are now allowing scientists to recreate the weird cartilaginous structures of ancient predators

"Active sleep" only lasted 40 seconds but cycled after 30 to 40 minutes of "quiet sleep". These patterns are similar pattern to how mammals experience rapid eye movement (REM) sleep.

Like Humans and Mammals, Octopuses May Have Two Stages of Sleep

Scientists do not know if octopuses dream in color, but they do change color while sleeping

Hawai'i's location in the subtropical Pacific makes it susceptible to northeast trade winds that bring infrequent rain showers with clear skies in-between that create optimal rainbow viewing conditions.

Hawai’i Is Officially the Best Place on Earth to See Rainbows, According to Science

The geographic location and topography of the islands create beautiful views

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.

New Research

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

The researchers found that 3D tracking tags picked up circling movements in various animals including, king penguins, tiger sharks, whale sharks and a Cuvier's beaked whale.

Researchers Are Investigating Why Marine Animals Swim in Perplexing Circles

Sea creatures may exhibit the spiraling behavior to navigate the ocean, for mating rituals, or to track prey

The water high in salinity slowly poisons trees, and as they die, all that is left behind are ghostly gray trunks that resemble toothpicks.

‘Ghost Forests’ May Become More Common as Sea Levels Rise

East Coast woodlands are left parched as brackish water encroaches on landscapes

Ocean creatures are noisier than scientists first thought.

Women Who Shaped History

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

For decades there were rumors of leaking barrels filled with the pesticide DDT littering the ocean floor off the coast of Santa Catalina Island dumped by the now-defunct, Montrose Chemical Corp, the largest global DDT manufacturer based in Los Angeles

‘Underwater Roombas’ Scan Southern California Coast for DDT Barrels

Hundreds of tons of the toxic chemical have likely littered the ocean floor near Santa Catalina Island for decades

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

Sea beans, otherwise known as sea asparagus and pickleweed, belong to the genus Salicornia, marsh plants that thrive in salty soils.

How One Farmer Is Introducing Americans to Sea Beans

In Charleston, South Carolina, Heron Farms is attempting to grow a gangly, salt-tolerant plant in the face of sea level rise

Satellite images comparing bull kelp canopy cover (gold shading) 2008 and 2019 off the coast of Mendocino and Sonoma Counties in Northern California.

New Research

Satellite Imagery Shows Northern California Kelp Forests Have Collapsed

Researchers say they’re not sure these iconic coastal ecosystems will be able to make a comeback anytime soon

The head and the body of the sea slug Elysia marginata, a day after the animal decapitated itself.

New Research

Sea Slug’s Decapitated Head Crawls Around Before Regrowing a Body

Researchers think that lopping off its own noggin could help the critter rid itself of parasites

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