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Pacific Ocean

Left: An olive ridley turtle nesting near the Huntington Beach Pier. Right: Eggs laid near Seal Beach. 

In a First, Sea Turtles Were Spotted Nesting on the U.S. West Coast. Scientists Say the ‘Super’ El Niño Could Have Brought Them There

Two olive ridley turtles were found laying eggs on beaches in Southern California in September. In the Pacific Ocean, these reptiles normally nest farther south, often in Mexico, Nicaragua, Costa Rica and Panama

The "super" El Niño event in the Pacific Ocean has been brewing since June and will extend through February.

Scientists Say Scorching Temperatures Brought on by the ‘Super’ El Niño Could Kill Nearly Half a Million People by February

The predicted number, which includes deaths since June, likely represents an underestimate of total deaths. The heat could linger beyond February, and the climate swing could bring about other life-threatening conditions, including flooding, wildfire and infectious diseases

The squid emerged from the darkness at a depth of nearly two miles below the surface.

Watch an Elusive and Ethereal Bigfin Squid Float Above the Seafloor Off Central California

This marks the first time the mysterious creature has been seen alive in the northeastern Pacific Ocean. It was spotted last month by scientists on an expedition to study marine life near underwater mountains

A hawksbill sea turtle munches away on a sponge near Juno Beach.

Smithsonian Photo Contest Galleries

Journey Under the Sea With 20 Amazing Photos of Marine Life, From Seahorses to Manta Rays to Orcas to Turtles

These Smithsonian Magazine Photo Contest images feature the captivating creatures that live beneath the waves

A photo of Solenostomus snuffleupagus taken in 2003

Meet the Newly Discovered Fuzzy Fish Species Named After Mr. Snuffleupagus From ‘Sesame Street’

The ghost pipefish’s scruffy appearance probably helps it look like floating algae, allowing it to blend in with its environment. Researchers had been on the hunt for this strange creature for years after first spotting one more than two decades ago

A harbor porpoise surfaces near the Golden Gate Bridge.

Marine Biologists Solved a Wildlife Mystery From the Walkway of the Golden Gate Bridge: How the Harbor Porpoise Mates

The dolphin-like marine mammals returned to San Francisco Bay in 2008 after a decades-long absence from the area. Scientists took the rare opportunity to closely observe their behavior, and what they uncovered might help at-risk porpoise populations

The USS Silversides entered dry dock for the first time in more than 50 years, giving crews a chance to perform major repairs and maintenance work.

This World War II Submarine Noted for Sinking Enemy Ships Just Journeyed Across Lake Michigan for a Multimillion-Dollar Makeover

The USS ‘Silversides’ earned a dozen battle stars for its work patrolling the Pacific Ocean. The Gato-class sub is now the star of a museum in Michigan

Wisconsin Air National Guard officers carry the wingtip on July 12.

This American Pilot Downed 40 Enemy Aircraft During World War II. Researchers Discovered the Wreck of His Plane in a Pacific Jungle and Brought a Wing Back to His Home State

Richard I. Bong, flying a plane decorated with a portrait of his future wife, Marge, became America’s highest-scoring “ace” and received a Medal of Honor

The Solomon Siren by Jason deCaires Taylor honors Kale Island, which was submerged a decade ago due to rising sea levels. 

This Pacific Island Disappeared Under Rising Seas. A New Sculpture Marking the Spot Will Morph Into a Home for Seabirds, Coral and Marine Life

“The Solomon Siren” remembers Kale Island, submerged a decade ago in the Solomon Islands

Gray whales, like this one that washed up dead in Los Angeles in April 2025, are grappling with malnutrition and ship strikes.

Nearly 150 Gray Whales Have Been Found Dead Along North America’s Pacific Shore This Year, Prompting Scientists to Sound the Alarm

The population of eastern gray whales, which migrate annually along the West Coast between the Arctic and Mexico, has been declining in recent years. Conservationists say 2026 could be one of the deadliest years on record for the marine mammals

The technology uses thermal cameras and artificial intelligence to detect whales based on the water spewed from their blowholes, which is slightly warmer than the surrounding water.

Gray Whales Are Getting Struck by Ships in San Francisco Bay. Could This New A.I.-Powered Tech Save Them?

The recently launched system involves two thermal cameras that can detect gray whales up to four miles away, giving ships enough time to slow down or change course—and avoid running into the marine mammals

Goblin sharks have elongated snouts and extendable jaws, which they use to snatch prey.

‘Ugliest Shark on the Planet’: See the Elusive Goblin Shark, Filmed for the First Time in Its Deep-Sea Habitat

Scientists spotted the enigmatic creatures in 2019 and again in 2024, marking the first times they’ve been observed alive in the wild. The sightings drastically expand the animals’ known geographic and depth range

The new species was named Microeledone galapagensis ​​​​​​in honor of the location where it was collected.

Cool Finds

‘Cute Little Guy’: Scientists Discover a Tiny Blue Species of Octopus by the Galápagos Islands

The palm-size creature was spotted and collected during a research expedition more than a decade ago, but scientists have just identified it as a previously undescribed species

This satellite image from January 16, 2022, reveals formaldehyde in blue. The volcanic plume from the Hunga Tonga-Hunga Ha’apai volcano traveled over the South Pacific.

Tonga’s Enormous Volcanic Eruption Cleaned Up Part of Its Own Methane Emissions in 2022, Hinting at a Way to Fight Climate Change

Researchers analyzed satellite imagery of the volcanic plume and found evidence that the potent greenhouse gas had broken down. The work could inform artificial interventions aiming to mitigate global warming, scientists say

The USS Herring entered service in 1942 and completed eight war patrols.

This American Submarine Lost During WWII—Along With 83 Crew Members—Has Been Discovered in the Pacific Ocean

The honors-earning USS “Herring” sank in 1944 after taking down Japanese ships

A team is exploring shipwrecks in Lake Union, including this steel workboat submerged 30 feet deep.

An Underwater Robot Explores the Hidden ‘Shipwreck City’ Beneath the Surface of This Popular Urban Lake in the Pacific Northwest

Using a remotely operated vehicle, researchers are exploring a long-overlooked piece of Seattle’s maritime history

Each by-the-wind sailor is made of a community of genetically identical organisms called "zooids" that perform different tasks.

Millions of Bright Blue Blobs Called ‘By-the-Wind Sailors’ Are Littering Beaches Along the West Coast

The strange creatures are washing up on shores across California, Oregon and Washington this spring—and making the coast smell especially fishy

This Socorro dove recently hatched at the San Diego Zoo Safari Park. Conservationists have been undertaking a decades-long effort to breed the extinct-in-the-wild species and one day reintroduce it to its native Socorro Island in Mexico.

New, Rare Dove Hatchlings Are a ‘Source of Hope’ for the Extinct-in-the-Wild Birds and a Step Forward in the Ambitious Project to Save Them

The Socorro dove has not been recorded in the wild since 1972, but that could change within only a few years, conservationists say, thanks to a long-term reintroduction effort

The Bering Strait is a narrow waterway between Russia and Alaska that connects the Pacific and Arctic oceans.

Could Building a Dam Across the Bering Strait Save the Planet From Some Effects of Climate Change?

A preliminary study suggests that blocking off the waterway between Russia and Alaska could help the survival of a key system of ocean currents. But there could be potential unforeseen consequences, particularly to marine ecosystems

After researchers aboard the Okeanos Explorer ship couldn't figure out the orb's identity, they sent it to the Smithsonian's National Museum of Natural History for a more thorough investigation.

Cool Finds

Scientists Found This Mysterious Golden Orb on the Seafloor Nearly Three Years Ago. Now, They Finally Know What It Is

After a long, winding road of tests, researchers at the Smithsonian’s National Museum of Natural History and other institutions determined that the strange blob once attached a large sea anemone to a rock

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