Sea ice trapped atmospheric carbon dioxide in the last ice age.
The last ice age locked atmospheric carbon dioxide into oceans, which has major implications for how the oceans and carbon dioxide may be linked in the future.
Ancient whales, such as
Janjucetus illustrated here, used their sharp teeth to capture and process their prey.
Ancient whales were neither gentle, nor giants: they were smaller than those of today and judging from their teeth, a lot meaner.
A shark’s nose is chemosensory only, and it doesn’t join up to the back of the throat like ours does.
Sharks can't sneeze like we do, but they can do other cool tricks -- like making their stomach stick out of their mouth to get rid of unwanted stuff.
Many African countries are sitting on vast and under-utilised oceanic territories that have the potential to unlock enormous economic value, if properly governed.
There is a great opportunity and imperative for Australia and Indonesia to join forces to solve critical challenges facing the ocean and coastal regions.
The two countries share huge marine resources and opportunities. At the same time both face increasing challenges to their oceans and coastal regions from climate change and over-exploitation.
Ship strikes can be deadly, as shown by this blue whale off the US northwest.
Craig Hayslip/Oregon State Univ./Flickr/Wikimedia Commons
Ships in Australian waters are getting bigger and more numerous all the time. We need a plan to help them avoid crashing into whales and other large sea creatures.
Watch out, there’s a mixotroph about.
They 'engulf living prey, suck out their innards, poison them, harpoon them, make them explode, and steal and reuse body parts'. And we ignore them at our peril.
Commerce and Sea Power, William Lionel Wyllie, 1898.
Guildhall Art Gallery
Laying the first telegraphy cable under the Atlantic was the Victorians' version of the Apollo mission – it caught the imagination of a generation.
Scientists are using detailed computer models of the ocean to trace debris back through the currents to the potential crash site.
Climate change isn't the only thing making sea levels higher and cyclones more intense.
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.
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.
Too many fish in our seas, like this Pacific bluefin tuna, are being lost to over-fishing – but better management can help.
Over-fishing is a massive environmental and economic challenge. Fortunately, there are new solutions being trialled – including in a tuna hotspot in the Pacific.
Expect to see more ships on the horizon, as global shipping booms. But how well are we measuring and governing what happens at sea?
As the world's land-based economies struggle with around 2% GDP growth, the global marine economy – often talked about as "the blue economy" – is a bright light on the horizon.
Gathering data at the calving front of the Ilulissat Glacier, Greenland.
To create accurate models that predict how ice sheets and oceans will react to changing climate, modelers need precise current data. One researcher heads to the ends of the earth to collect just that.
Satellite image showing clouds over the Greenland Sea downstream of the ice edge during conditions where there was a large transfer of heat and moisture from the ocean to the atmosphere.
Loss of sea ice near Greenland and Iceland portend a colder future for Europe.