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Oceans

What if, rather than coral reef rehabilitation remaining a tedious and difficult manual process, conservationists could harness robotics, artificial intelligence and autonomous vehicles to transform it into an industrial-scale endeavor?

Could Underwater Autonomous Robots Save Coral Reefs?

Reef restoration is a slow process, with divers planting coral fragments one at a time by hand. But roboticists are now developing automated planters that could change the game

Sea ice forms off the edge of the Brunt Ice Shelf in Antarctica’s Weddell Sea.

Warm Waters Are Usually Trapped Deep Within the Southern Ocean. Now, They’re Encroaching on Antarctica, Threatening Its Ice

Two new studies that relied on data from a fleet of diving robots show how climate change is altering ocean movements in ways that jeopardize the stability of the polar ice cap

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

Illustration of the giant ancient octopus

Cool Finds

This Bone-Crunching Octopus Was Nearly the Size of a Semitruck and May Have Feasted on Giant Reptiles 100 Million Years Ago

The massive invertebrates may have been top predators, according to an analysis of their fossilized jaws. The work suggests that ancient oceans weren’t completely ruled by spine-bearing creatures, as previously thought

The two-toned lobster will go on display at the Woods Hole Science Aquarium when it reopens next year.

See the 1-in-50-Million Split-Color Lobster Caught Off the Coast of Massachusetts. It’s Carrying Two Sets of Genetic Information

The unusual-looking crustacean is two-toned, with a line dividing its body into an orange side and a brown side. This can happen when two fertilized, unlaid lobster eggs touch—causing one to absorb the other

The reseachers investigated preserved specimens kept at museums, like this Bufoceratias wedli from the Field Museum in Chicago.

Anglerfish Are Known for Their Built-in Fishing Rods. New Research Sheds Light on How These Lures Evolved in the Strange Creatures

A new study suggests the odd appendages first appeared in the fish’s ancestors around 72 million years ago. Today, females might use them not only to attract prey but also to communicate with potential mates

Fish swim around the Antilla shipwreck.

The ‘Antilla’ Shipwreck Tells the Story of When World War II Came to Aruba

Tourists can learn about this history by snorkeling over the wreck of the German ship in shallow waters just off the island’s coast

The researchers primarily studied California two-spot octopuses.

Octopus Sex Just Got Weirder. In Addition to Depositing Sperm, Males’ Specialized Mating Arm Can ‘Taste’ Female Hormones

The hectocotylus is both a reproductive organ and a sensory organ, a rare combination in animals, new research suggests

Málaga’s famous espetos, or sardines, are cooked over an open flame in traditional blue fishing boats right on the beach.

Coastal Cities of Europe

Chiringuitos Offer the Quintessential Beach Bar Experience on Spain’s Costa del Sol

Steeped in history, the seafood joints are evolving to keep up with a global clientele and tightening environmental regulations

An artistic rendering shows the mysterious animal, which researchers now say was a nautilus relative, in its prehistoric environment.

This Fossil Held the World Record for the Earliest Known Octopus. Turns Out, It’s Not an Octopus After All

New research suggests the 300-million-year-old specimen is actually a relative of the nautilus

Cow sharks (one shown) and frilled sharks are members of the newly proposed lineage.

What Is a Shark? A New Genetic Analysis Throws an ‘Unexpected Wrench’ Into Our Understanding of the Ocean Predators

Some shark species might belong to their own distinct lineage, which is separate from all other sharks, rays and skates, according to a new study

Megachelicerax cousteaui and a close-up of one of its pincers, or chelicerae

This 500-Million-Year-Old Fossil of a Claw-Bearing Predator Uncovers the Origins of Spiders, Scorpions and Other Arthropods

A new analysis of a specimen found more than 40 years ago reveals the oldest known chelicerate, defined by its pair of pincer-like appendages

The sperm whales gathered around the mother before the delivery. 

Watch Unprecedented Footage of Sperm Whales Helping a Newborn Calf Take Its First Breaths

Unrelated animals worked with the mother and her relatives, marking the first known evidence of whales from multiple families assisting in a birth

Sharks in the Bahamas, including the Caribbean reef sharks, are ingesting drugs, a new study suggests.

Sharks in the Bahamas Test Positive for Drugs, Including Cocaine and Painkillers, in a New Study

Around one-third of the studied sharks had detectable levels of the analyzed drugs in their blood

A sperm whale swimming near the Azores archipelago, off the coast of Portugal

Scientists Capture the First Known Footage of Sperm Whales Headbutting, a Long-Debated Behavior That Inspired ‘Moby-Dick’

Engaging in “rough play” might help young males practice for future headbutting contests in which they compete for mates

One of blue crabs' biggest threats seems to be members of their own species.

Cannibalistic Blue Crabs Are Eating Their Younger Peers in Part of the Chesapeake Bay

The findings by Smithsonian researchers could help experts better manage this crustacean’s population. The creatures play important roles in the local ecosystem and food industry

Researchers spent six years observing interactions between bull sharks at Fiji's Shark Reef Marine Reserve.

Bull Sharks Are Large, Aggressive Predators—but They Also Know How to Make ‘Friends,’ New Research Suggests

The animals probably socialize to learn new skills and to find food and mates

Like Astrophage, the solar-radiation-eating microbes in Andy Weir’s novel Project Hail Mary, some sea slugs can derive energy from sunlight.

These Sea Slugs Can ‘Eat’ Sunlight—but They’re No Astrophage. Here’s How the ‘Project Hail Mary’ Antagonist Has a Real-Life Analogue in Earth’s Oceans

By snatching chloroplasts from algae, animals called sacoglossans produce their own energy through photosynthesis

Scientists tracked the breeding behaviors of king penguins on Possession Island, part of the French-controlled Crozet archipelago.

King Penguins Seem to Be Benefiting From a Warming World. While That’s Good News for Now, It Could Spell Trouble for the Future

The birds are breeding earlier, and more of their chicks are surviving. But researchers fear this success may not last

The biggest discrepancies were in Southeast Asia.

Sea Levels Might Be Higher Than We Thought, Putting Millions of People in the Path of Coastal Flooding Sooner Than Expected

A lot of past research has used flawed methodology to estimate current coastal water levels, according to a new study

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