A plague, or just an artefact?
How flawed citation practices can perpetuate scientific ideas even before they've been fully established as true.
A mass proliferation of
Noctiluca scintillans, a red tide forming dinoflagellate at Clovelly Beach, NSW. It can form dense aggregations that deplete oxygen and produce ammonia.
They give us part of the air we breathe but microscopic phytoplankton can also be toxic. They are also on the move thanks to climate change so a new Australian database hopes to monitor any changes.
Nice to see you: parrotfishes prey on seaweed, which consume seaweeds that can outcompete, smother or even poison corals.
A combination of factors – pollution, disease and overfishing – is harming corals but scientists have found clues to effective treatment by studying corals' microbiome.
olenalavrova / shutterstock
Microplastics go largely unseen but are a scourge of the oceans. Filmmaker Jo Ruxton answers questions about the challenge of filming it.
Dendrogramma, the deep-sea mushroom.
Hugh McIntosh/Museum Victoria
What scientists first thought was an ancient species that had survived undiscovered for many millions of years, turns out to be part of something equally mysterious.
Climate change isn't the only thing making sea levels higher and cyclones more intense.
Jason Vandehey / shutterstock
Researchers have long used such techniques to learn about currents and tides.
Ocean sediments in South Africa provide evidence of climate variation going back 270,000 years.
Marine sediments provide evidence of climate variability in South Africa going back 270,000 years. These changes correspond with changes in the archaeological record of the country.
Coral affected by black band disease, Bahamas.
James St. John/Flickr
Infectious diseases are a normal part of ocean ecosystems, just as they are on land. But climate change is altering the oceans in ways that could make marine diseases spread farther and faster.
The oceans are teeming with life and potential – but the high seas are still largely ungoverned.
The open oceans are the world's "wild west", falling outside any nation's jurisdiction. UN negotiations are aiming to draft new laws for the high seas.
The next cancer breakthrough could be found in international waters – but who's in charge of the high seas?
An Amphipod at 8,000 metres.
From time-shifting earthquakes to bizarre creatures, the crushing depths of the hadal zone are another world.
The mussel hustle.
Shellfish will have more brittle shells as oceans get more acidic – making them more vulnerable to predators. New research gives a fascinating glimpse into how they will adapt.
A portion of the East Antarctic Ice Sheet, called Wilkes Land, flowing into the ocean.
Michael Hambrey/Glaciers online net
The way ice sheets respond to global warming may be more predictable than previously thought
The land may be dry, but Western Australia’s waters are full of life.
The Great Barrier Reef might get all the attention, but what about our western coral reefs? Warmer waters and human impacts mean these reefs are in trouble.
A Japanese fish found in Washington after hitching a ride in a boat sent across the Pacific Ocean by the 2011 tsunami.
The 2011 Japan tsunami illustrates how more marine creatures are crossing the oceans than ever before - and not all of them are friendly travellers.
Anse Source d'Argent beach, La Digue island, Seychelles is one of Africa’s finest beaches.
Africa has some wonderful beaches. A serious traveller should visit at least one of them once in a lifetime.
Early signs of bleaching coral in Kaheohe Bay Hawaii, August 2015.
XL Catlin Seaview Survey / Underwater Earth
Many corals can't make it through the bleaching events caused by warming ocean waters. But some can – and scientists are trying to learn more about the sources of their resilience.
Microbes can act as canaries in the coalmine for ocean pollutants such as sewage.
There are more bacteria in the ocean than stars in the known universe. New genetic techniques are letting us use microbes as early warning systems for oceans in trouble from pollution and other stresses.
A new real-time measuring buoy can change the way the maritime industry operates.
Enhanced data collection capabilities will ensure that information collected from the coastline will be seamless.