The Pacific footballfish, which was featured in Pixar’s Finding Nemo, was found in perfectly preserved condition

The Chagos Archipelago is one of the most remote, seemingly idyllic places on Earth. Coconut-covered sandy beaches with incredible bird life rim tropical islands in the Indian Ocean, hundreds of miles from any continent. Just below the waves, coral reefs stretch for miles along an underwater mountain chain.

Prize-winning author Richard Flanagan slams the Tasmanian salmon industry, describing it as disastrous for the environment, with overstated health benefits — and alleging the public had not been told the extent of the expansion plans for fish farms around the state.

From relaxing baths to seaside swims, water can be a balm in difficult times. Catherine Kelly, the author of a new book on blue spaces, shares her tips

A new study from North Carolina State University found that, on average, voters and local leaders showed greater concern about plastic and other garbage in the ocean after watching kids’ presentations.

Dragging heavy nets across seabed disturbs marine sediments, world’s largest carbon sink, scientists report

Whalers’ logbooks show rapid drop in strike rate in north Pacific due to changes in cetacean behaviour

Hundreds of people are evacuating coastal areas after a series of quakes shook the region.

The whaling story behind 'Soon May the Wellerman Come' reminds us of the crucial connections between Māori and Europeans that shaped early 19th century settlement.

Long-lived banned industrial chemicals may be threatening the fertility of male porpoises living off the UK. Polychlorinated byphenyls (PCBs) were phased out decades ago, but can build up in whales, dolphins and porpoises. Scientists say harbour porpoises exposed to PCBs had shrunken testicles, suggesting an effect on sperm count and fertility.

The Pacific Ocean produces oxygen, helps regulates the weather, provides food and livelihoods. It's a place of fun, solace and spiritual connection. But its delicate ecology is under threat.

While humans domesticate plants and animals, these relationships are surprisingly rare in other species. Our new study found a species of fish that appears to have domesticated a kind of tiny shrimp.

The board also features two rows of LED lights to illuminate the water.

Over the past six months, tourists and locals have been shocked to see Byron's famous Main Beach literally disappearing. Satellite imagery and local knowledge has revealed what's going on.

Ram's horn shells are small, delicate spiral structures beachcombers can commonly find throughout the world.

Australian scientists have discovered a detached reef more than 500 metres high – taller than the Empire State Building – at the northern end of the Great Barrier Reef. The “blade-like” vertical reef about 130km off Cape York, Australia’s north-eastern tip, was found during a 3D seabed mapping exercise conducted from a ship owned by the Californian non-profit Schmidt Ocean Institute.

With the setting of the sun and the onset of polar darkness, the Arctic Ocean would normally be crusted with sea ice along the Siberian coast by now. But this year, the water is still open. I’ve watched the region’s transformations since the 1980s as an Arctic climate scientist and, since 2008, as director of the National Snow and Ice Data Center. I can tell you, this is not normal. There’s so much more heat in the ocean now than there used to be that the pattern of autumn ice growth has been completely disrupted.

With its five, massive, solid sails, this ship will carry 7,000 cars across the Atlantic, while being almost emission-free.

Let's start with a sense of scale. This dot right here is the size of an average human. This slightly larger dot is the size of an elephant. And this is the size of the largest ship ever built, the Knock Nevis. With that in mind, let's start going underwater and see what we find out. The first milestone is at 40 meters below the surface, which is the maximum depth allowed for recreational scuba diving.

Hundreds of sea turtles are gathering off the coast of Bundaberg for a frenzied annual breeding season involving hooks, multiple partners, the threat of sharks and the odd case of mistaken identity.