Oceans

Smooth pearls in the shape of orbs and ovals are usually created by bivalves, like mussels, in pearl farms. As with all gems, the less blemishes they have, the more valuable they are.

The True Story Behind How Pearls Are Made

Mollusks create these shiny gems, but that biological process could change as Earth’s waters warm

From the surface, the havoc caused on a coral reef by a layer of low-oxygen water was barely evident.

Watch What Happens When a Coral Reef Can't Get Enough Oxygen

In September 2017, divers observed a massive "dead zone" rising to envelop Caribbean coral reefs in Bocas del Toro, Panama

A perfect storm of high demand clashing with supply chain issues, worker shortage and delivery problems is forcing restaurant owners to raise seafood prices on their menus.

Seafood Prices Soar Amid Supply Chain Issues and Worker Shortage

As demand for fish rises, restaurants are slammed with employment losses, port congestion, lack of product, rising costs and shipment snags

The 2,200-square-foot venue is located about ten miles inland from Ocean City, in the town of Berlin, Maryland.

New Maryland Museum Dives Into the Mythology of Mermaids

Blending history, pop culture and folklore, the attraction features a Feejee mermaid, original artworks and more

An adult male transient or Bigg's killer whale.

Stranded Killer Whale Survives With the Help of Humans

The whale was spotted stuck among the rocks of an island in Southeast Alaska, but after about six hours on dry land the whale was able to swim off

While Spongebob and Patrick are friends in the animated world, the relationship between sea stars and sponges is not as friendly in real life. Sea stars are carnivores and are known to prey on sea sponges, crabs, oysters, clams, and coral.

See SpongeBob SquarePants' and Patrick Star's Real-Life Twins

The aquatic pals were discovered one mile deep in the Atlantic Ocean during a NOAA expedition

A 3D image of the spiral-shaped intestine of a Pacific spiny dogfish shark. In life, food would move through this intestine left to right.

Sharks' Intestines Spiral Like a Valve Invented by Nikola Tesla

Tesla's ingenious valve promoted a one-way flow of fluid without the need for moving parts, but, it turns out, evolution got there first

A present-day orange demosponge (Agelas oroides) can be found off the coast of Corfu, Greece. Research suggests sponges may have lived on Earth 890 million years ago.

This Sponge Fossil May Be the Earliest Record of Animal Life

The 890-million-year-old relic predates periods of extreme cold and the planet’s second oxygenation spike

Noise pollution affects the structures within seagrass that help the marine plant detect gravity and store energy.

Seagrass Is Harmed by Noise Pollution

The plant may not have ears, but that doesn’t stop sound from causing serious damage to other structures

An opah or moonfish that washed up on Sunset Beach in northern Oregon on July 14.

Brightly Colored, 100-Pound Moonfish Washes Up on Oregon Beach

Scientists say this open-ocean species, also known as an opah, typically inhabits warmer waters than those of the Pacific Northwest

Neurotoxins secreted by the algae Karenia brevis kill marine life including fish, dolphins and manatees

More Than 600 Tons of Dead Sea Life Wash Up on Florida Coast Amid Red Tide

Crews cleaned up nine tons of dead fish in just 24 hours after Tropical Storm Elsa pushed the fish toward shore

Similar lunar and climate conditions led to increased flooding in 2015. Pictured, a car drives through high waters in Fort Lauderdale, Florida.

Moon's Wobbly Orbit and Rising Sea Levels Will Cause Record Flooding in the 2030s

Clusters of nuisance floods could have major impacts on businesses and public health

New research finds that sea otters have extremely high metabolisms for their size to keep warm in the cold ocean waters they inhabit.

With This Metabolic Trick, Sea Otters Stay Warm Without Shivering

Researchers find that the metabolisms of these marine mammals go into overdrive to create heat in cool waters

Chris Meyer, a marine invertebrate zoologist at the Smithsonian’s National Museum of Natural History, dives around French Polynesia with equipment used to track coral reef health.

Meet the Reef Expert Collecting Environmental Time Capsules

Collecting DNA in waters worldwide can help scientists figure out which places are the most important for conservation

Rain, waves, and seeping groundwater can destabilize seaside bluffs, making them prone to collapse.

The Science of Predicting When Bluffs in Southern California Will Collapse

Researchers are using lidar to better understand the erosional forces that cause oceanfront cliffs to crumble

An Atlantic White Shark Conservancy boat and crew work to tag a great white shark in the waters off the shore in Cape Cod, Massachusetts on July 13, 2019.

Can New Tools Help Beachgoers Predict the Likelihood That a Shark Is Nearby?

Great whites have returned to Cape Cod, and efforts are underway to help people coexist with them

Astronomers used the Keck Observatory in Hawai'i to analyze what chemical building blocks made up the Comet 46/P Wirtanen.

Boozy Comet's Mysterious Heat Source Offers Clues to How Planets Like Earth Obtain Water

The cosmic relic contains minerals from when the solar system first formed and high amounts of methanol

Satellite images of the Southern Amery Ice Shelf show the ice-covered lake before and after a fracture in the ice shelf beneath caused it to drain into the sea.

Massive Antarctic Lake Vanishes in Just Three Days

Researchers estimate the body of water once held as much as 26 billion cubic feet of H2O that has now all drained into the ocean

Dune Lankard is embracing a method called regenerative ocean farming.

Facing Warming Waters, Fishermen Are Taking Up Ocean Farming

Called regenerative ocean farming, this model involves growing shellfish and kelp in underwater gardens

This image from Seabed 2030 shows how much of the seafloor has been mapped, with black areas representing places without data yet.

Can Scientists Map the Entire Seafloor by 2030?

Two non-profit organizations are betting that with the help of research institutions, private vessels and new technologies, they can do just that

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