Someone's thrash is another one's treasure - this old saying has an entirely different meaning for an octopus.

Scientists have uncovered evidence that tiny microbes living inside fish may be helping shape the chemistry of the world’s oceans. The new study, led by former graduate student Anthony Bonacolta at the University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science, suggests that bacteria in fish intestines may work together with their hosts [...]

Growing eels might not be as simple as we thought.

A newly discovered, highly camouflaged marine predator bears an uncanny resemblance to a beloved Muppet.

A giant Atlantic Ocean current that helps regulate Earth’s climate is slowing down, and scientists say the impacts could be global. A massive Atlantic Ocean circulation system that plays a central role in regulating Earth’s climate has been weakening for nearly 20 years, according to a new study. Scientists say the slowdown spans a large [...]

Scientists exploring deep underwater canyons off Western Australia have uncovered an unexpectedly rich world of marine life using environmental DNA collected from seawater thousands of meters below the surface. A new study led by Curtin University has uncovered remarkable biodiversity inside deep underwater canyons off Western Australia’s Nyinggulu (Ningaloo) coast. The discoveries include…

Warming oceans could unlock a hidden methane boost that speeds up climate change. The oceans may be contributing to climate change in a subtle but important way that scientists are only starting to recognize. Hidden Source of Ocean Methane A new study published in the journal Proceedings of the National Academy of Sciences sheds light [...]

A new study reveals how orcas shape water into a tool to wash seals off ice floes

A powerful tsunami seen from space is overturning what scientists thought they knew about how these waves travel. A satellite designed to measure ocean surface height delivered a remarkable result when a powerful earthquake near Russia’s Kamchatka Peninsula unleashed a tsunami that spread across the Pacific in late July. Scientists report in The Seismic Record [...]

AI is turning weather satellites into real-time trackers of the ocean’s hidden currents. Scientists have created a new way to measure ocean surface currents across large regions with far greater detail than previously possible. The method, known as GOFLOW (Geostationary Ocean Flow), uses deep learning to analyze thermal images captured by weather satellites already in [...]

Ocean giants are overheating—and climate change is leaving them with nowhere to go. A new study shows that some of the ocean’s most powerful predators are running hotter than scientists expected, and it could come at a growing cost. These animals already require large amounts of energy to survive, and now they face a difficult [...]

They found that more than 60% of the microbial groups they tracked exhibited seasonal cycling. While these seasonal cycles diminished at depths below 150 meters, surprisingly, they remained measurable in some deep-sea microbial species at depths of nearly two and a half miles.

“Notably, very closely related species or subspecies “bloomed” at different times of the year, similar to seasonal…

Scientists completely missed this island until a violent storm forced them off course.

A simple fin became the ocean's most sophisticated hunting tool.

Scientists are uncovering a hidden layer of coral reef ecosystems, one dominated not by visible marine life, but by vast and largely unexplored microbial communities. An international team of scientists has revealed new details about coral ecosystems, showing that each coral species supports its own unique community of microbes. The study, which included researchers from [...]

Machine learning reveals that ocean conditions are increasingly becoming more favorable for macroalgae growth. For the first time, researchers using artificial intelligence have carried out a global analysis of floating algae and found that blooms are increasing across the world’s oceans. The study links this expansion to changes in ocean temperature, currents, and nutrient levels, [...]

Researchers have applied a temperature proxy to exceptionally well-preserved fossil phytoplankton for the first time. The results suggest that conditions in the North Atlantic have been cooler than previously believed since the Miocene epoch. Accurate forecasts of how Earth’s climate will respond to rising atmospheric carbon dioxide depend on climate models. To test and refine [...]

They have vowels and some whales 'talk' faster than others.

A vast ocean current encircling Antarctica—more powerful than all the world’s rivers combined—played a surprisingly complex role in shaping Earth’s climate. The Antarctic Circumpolar Current moves more than 100 times the total water carried by all of Earth’s rivers combined. Flowing continuously around Antarctica without being blocked by land, it plays a central role in [...]

Antarctic sea ice decline in 2015 was caused by weakening ocean stratification and strong storms that mixed warm deep water upward, melting ice quickly. Antarctic sea ice is vital to both the region’s ecosystem and its physical environment, as well as the broader Southern Ocean. By reflecting sunlight and limiting heat exchange between the ocean [...]

Researchers discovered that massive lava flows and collapsing lava ponds at Axial Seamount reveal how underwater eruptions reshape the seafloor. Volcanic eruptions pose serious geologic risks. Submarine volcanoes are especially difficult to observe directly, yet they are central to shaping the ocean floor and can generate tsunamis that threaten nearby coastlines. The Juan de Fuca [...]

Ancient Antarctic ice is revealing a more detailed and unexpected picture of Earth’s climate history. New research on ancient Antarctic ice and the air trapped within it is extending the timeline of Earth’s climate history and offering new insight into how the planet has evolved over the past 3 million years. The results, published in [...]

They don't call them the "high seas" for nothing.

Contrary to common belief, the Mediterranean holds a significant and underrecognized tsunami risk, with waves capable of striking coastlines in minutes. The Mediterranean Sea is often dismissed as a low-risk zone for tsunamis, but that assumption is increasingly being challenged. Historical records and modern simulations show that powerful waves have already struck the French Riviera [...]

A sweeping genetic survey of Antarctic waters reveals a hidden microbial world with untold influence on Earth’s climate. The ocean surrounding Antarctica may look remote and empty, but it quietly helps regulate the planet’s climate. This region, known as the Southern Ocean, absorbs enormous amounts of heat and carbon dioxide from the atmosphere. Much of [...]

The ocean floor is teeming with life.

The finding could provide unprecedented insights into the great white's birthing practices.

Researchers say things aren't really *that* bad.

Along Alaska’s northern coast, a subtle but significant shift is unfolding as landfast sea ice forms later, disappears sooner, and covers less area than in previous decades. Sea ice along Alaska’s northern coastline is lasting for shorter periods each year, based on a 27-year analysis by scientists at the University of Alaska Fairbanks. This type [...]

Tiny fossils from Hokkaido are revealing a surprisingly mobile ancient ocean during a warmer world. A team led by researchers at Kumamoto University has identified a new genus of microscopic crustaceans in northern Japan, providing fresh insight into how North Pacific ocean currents changed during an important phase of Earth’s climate history. The study examines [...]