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sea spiders

Giant sea spiders may look strange, but their circulatory system is even weirder, new data show.

Tim Dwyer

 
Animals
Aug 14, 2017
Giant Antarctic sea spiders breathe really strangely
These creepy-crawlers absorb oxygen through their skin and pump blood with their guts
ocean exploration

To reach the deepest depths of the oceans, scientists must rely on rovers to take them there — or to do the exploring as they remain atop the waves.

Steve Ross, UNC-W/NOAA Office of Ocean Exploration/Flickr (CC-BY 2.0)

 
Oceans
Aug 10, 2017
Cool Jobs: Science deep beneath the waves
These scientists explore the sea’s mysterious depths — from ‘zombie worms’ to mega-waves
humpback whale

Scientists filmed this humpback whale swimming with a large group of others as it fed off the coast of South Africa. The video shows the whale using its front flippers to move toward its prey.

Charles Littnan and Ari Friedlaender

 
Animals
Aug 7, 2017
Humpbacks flap their flippers like underwater birds
Researchers spotted whales making moves once thought impossible
Arctic water

The Arctic Ocean didn’t become salty until a stretch of land that ran from Greenland (pictured here) to Scotland sank far enough beneath the sea, a new study finds.

SteveAllenPhoto/iStockphoto

 
Oceans
Jul 19, 2017
How the Arctic Ocean became salty
A land bridge had to sink far enough below a top-of-the-world lake to let Atlantic saltwater overwhelm it
corvina fish

This is a fresh-caught Gulf corvina. Scientists have listened in on its mating sounds to determine how many of these fish are around — and if they need protecting.

Gulf of California Marine Program

 
Animals
Jul 14, 2017
Listening to fish love songs can predict their numbers
Scientists use sound to count some of the fish in the sea
narwhals

The purpose of the narwhal’s mysterious tusk has been the subject of much scientific speculation. Now new video shows that the animals may use the elongated tooth to stun fish.

World Wildlife Fund

 
Animals
Jul 3, 2017
Beware the tap of the narwhal’s tusk
A new video shows narwhals tapping prey fish with their tusks, maybe to stun them
Ember goby
 
Ecosystems
Jun 26, 2017
Camera catches new fish species — as it’s eaten!
Invasive lionfish appear to threaten deep-reef species
methane plumes
 
Earth
Jun 13, 2017
Ancient Arctic ‘gas’ melt triggered enormous seafloor explosions
Telltale monster craters reveal a violent side to melting ice — one that could repeat soon
shipworm
 
Evolution
May 26, 2017
Weird mega-worm found to have odd diet
Researchers get their first look at giant clam and its unusual food source
ocean trash
 
Pollution
May 23, 2017
Plastic trash rides ocean currents to the Arctic
Scientists track tiny pieces of trash at the top of the world