The Byron Scar, left behind by an undersea landslide. Colours indicate depths.
The ocean floor off Australia's east coast bears the scars of numerous subsea landslides, which have potentially triggered tsunamis over the past several millennia.
Scientists call large marine protected areas effective tools for conserving sea life. But do they benefit countries that create them? Scholars explain how Palau's huge marine protected area seeks to protect resources for Palauans.
BBC Blue Planet
It seems almost inevitable that deep sea mining will open a new and substantial chapter of humanity’s relationship with the oceans.
Trowels and spades are being put to use in the sea.
robert_s / shutterstock
A new way to think about this common statement.
Besides wondrous creatures, new discoveries and spectacular filming, Sir David Attenborough's follow up to The Blue Planet comes with a stark warning about the future
A new method has been developed to find objects that land at sea using underwater sounds.
Marine waters are an important source of food for Inuit.
The North Water Polynya, or Pikialasorsuag, is a key ocean area for Arctic animals and for Inuit hunting and fishing. Rocket launches threaten to contaminate the area with harmful chemicals.
Like big waves? Thanks to surf forecasting, you’ll know when and where to find them.
Shalom Jacobovitz/Wikimedia Commons
Walter Munk might be the most under-appreciated man in surfing, but he is a big deal in ocean science. If you've ever checked a surf forecast before paddling out, you have him to thank.
Interior Secretary Ryan Zinke has proposed shrinking Oregon’s Cascade-Siskiyou National Monument and allowing more public access and road maintenance.
Environmental law and natural resource experts respond to Interior Secretary Ryan Zinke's proposals to shrink four national monuments and allow logging, fishing and other activities in six more.
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.
Salt flows down rivers to the ocean.
A special combination of rain, rocks and subsea volcanoes makes the sea salty.
Pike Place Market, Seattle.
A new study shows that sustainable fish farming in deep ocean waters could produce as much seafood as all of the world's wild fisheries, in a space the size of Lake Michigan or Africa's Lake Victoria.
Plastic trash on San Francisco’s Ocean Beach.
A new study shows that anchovies – key food for larger fish – are attracted to plastic trash because it smells like food. This suggests that toxic substances in plastic could move up through food chains.
Giant kelp can grow up to 60cm a day, given the right conditions.
In an extract from his new book, Tim Flannery explains how giant kelp farms could suck carbon dioxide from the air and store it in the ocean's depths, while encouraging species like fish and oysters.
Hey, what about us? Whale shark (spotted) and manta ray, a close shark relative.
As the Discovery Channel and National Geographic Wild unleash a week of dueling shark programs, a biologist advises viewers to take what they see with a large grain of sea salt.
Great white photobomb.
George T. Probst/NOAA/Flickr
The world's oceans are home to innumerable life forms, from sponges to sea lions, and scientists have many creative ways of studying them.
The famous “faceless fish”, which garnered worldwide headlines when it was collected by the expedition.
Surveying the bottom of the ocean turns out to be far from easy. But there was something wonderful about seeing animals we have only read about in old books.
Furious winds keep the McMurdo Dry Valleys in Anarctica free of snow and ice. Calcites found in the valleys have revealed the secrets of ancient subglacial volcanoes.
Melting ice from Antartica could feed vast plankton blooms, trapping carbon in the ocean. To understand this complex mechanism, researchers looked at volcanoes deep under glaciers.
U.S. Navy diver off the coast of Guantanamo Bay, Cuba.
MC2 Kori Melvin, U.S. Navy/Wikipedia
Cuban and US scientists are forming partnerships to protect coral reefs and fisheries in both countries. But President Trump may soon announce steps to slow or reverse the US opening to Cuba.