Heat waves aren’t just for land lubbers. Climate change has turned the oceans into cauldrons of scalding water, upending marine ecosystems around the world.

For the first time, scientists have mapped how much oceanic wilderness remains. Only 13.2 percent of the oceans are unspoiled, a shocking finding that shows the extent to which humans have reshaped the planet above and below the waves.

In 1997, scientists with the U.S. National Oceanic and Atmospheric Association were recording the sounds of underwater volcanic activity when they picked up a noise that was so incredibly loud—louder than any underwater sound ever detected—that they initially thought it must be an equipment malfunction. But then…

Our oceans are home to a diverse array of aquatic organisms, a surprising number of which have yet to be discovered. To help in the search for these fascinating creatures, researchers have developed a robotic device capable of capturing even the most delicate deep-sea animals, which it does with a foldable, 12-sided…

The seas between the Arctic and Atlantic oceans are a battleground between two opposing bodies of water. And it appears that the Arctic is starting to lose the war. This is happening faster than models projected, and scientists don’t quite know what the long-term impacts will be.

Imagine that during our evolutionary history, we could not turn our heads up or down. How might our vision have evolved differently from the two frontal, mobile eyes we have today?

Marine biologist Joshua Stewart was scuba diving in the Gulf of Mexico when he spotted a baby manta ray—an unexpected find, given that juveniles are extremely rare and seldom observed by humans.

Manta rays are among the most charismatic undersea megafauna, but there’s still a lot we don’t know these flat, ginormous sea-dogs. Now, in trying to understand how their populations are connected in the Gulf of Mexico, scientists have made a wild discovery.

In the wake of the biggest offshore oil spill in U.S. history, President Obama announced an executive order designed to help safeguard the oceans. Naturally, President Trump has decided to dismantle it and replace it with a policy touting the benefits of offshore drilling.

A male pilot whale struggled for five days to stay alive in Thailand near the Malaysian border after rescuers found it with 17 pounds of plastic bags in its stomach, the Washington Post reported on Sunday, but it ultimately succumbed to its illnesses.

Forget catching rays on the beach. If you’re near San Diego, do yourself a favor and go check out the surf at night.

SANIBEL, FLORIDA—At the lowest tide of the month, the Gulf of Mexico peels back from the shores of Sanibel Island to reveal its treasures. Bruce Schulz is out there on a late February morning to find his piece of the booty.

Hawaii legislators approved a bill on Tuesday that would ban the sunscreen containing the ingredients oxybenzone and octinoxate, an ingredient in 3,500+ of the world’s most popular brands that has been linked to the death of coral reefs.

Climate change and a never ending stream of plastics are two of humanity’s worst legacies that will reshape the planet for eons. Now, they’re getting to work in tandem in the remote stretches of the Arctic.

Hawaii’s Department of Natural Resources released footage this week of a monk seal pup brandishing a knife. It’s equal parts menacing, adorable, and depressing as hell.

For years, shrimp and their other tiny, uncharismatic brethren collectively known as zooplankton were deemed too inconsequential to alter the oceans. Sure, they’re important food sources but it’s not like they could actually churn the high seas, right? Wrong, according to the new research published in Nature on…

Climate change is creating a battle of survival of the fittest. And it appears bull sharks are winning.

The Great Pacific Garbage Patch is greater than we ever thought. And by greater, I mean worse.