An ichthyosaur preserved beneath a Chilean glacier is helping scientists understand the extinct animals and the world around them as a supercontinent broke up.

Eastern Baltic cod grow to much smaller sizes than they did just 30 years ago, because overfishing altered their genes, ...

When vacationers head into the water, they often take a quick look at the ocean floor—and for good reason. In some European ...

It's not easy to look at a sea spider and see an animal so representative of its kind that it may help scientists sort out ...

Deep below the surface of the ocean, bacteria and critters that feed off nutrients spouting from hydrothermal vents met with ...

Here's how Jorge the sea turtle prepared for the improbable journey—decades after he was found tangled in a fishing net off ...

Boaters got “lucky enough” to spot a plethora of sea creatures off the coast of California, spotting multiple species in one ...

One of the major causes in the Baltic Sea is a process named eutrophication ... whether growers applied basic principles of organic farming such as crop rotation or animal-welfare standards.

Monitoring elusive harbor porpoises is challenging. A study found that land-based optical tools excel at tracking them, while ...

Decades of overfishing have altered the genetic makeup of Baltic cod, shrinking their size and threatening their recovery.

Two new studies add to the evidence that human activity, from fishing to urban development, is driving the evolution of wild ...

An 11,000-year-old megastructure, potentially used for reindeer hunting, has been discovered under the Baltic Sea, offering a ...