Since its lowest point in the 1970s, the Baltic ringed seal population has grown from about 5,000 to 25,000 individuals.

Western Pomerania is a paradise for nature lovers—and it's not too far from Berlin or Hamburg. Here, you'll find ancient ...

Illnesses from stealthy pathogens known as Vibrio are advancing northward along numerous coasts, potentially ruining your ...

In a mid-sized lake of Switzerland, a “robust” creature with “slim” bumpy lips swam through the shallow water, or it tried to ...

The seal population has increased from about 4,000, considered nearly extinct, in the late 1980s to about 50,000.

Bull sharks are lingering off Sydney's beaches for longer periods each year as oceans warm, researchers said Friday, ...

As oil companies push for drilling on the Amazon coast, an underwater war silences the ocean’s most vocal creatures.

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 ...

At least a dozen species of fish, usually found in the Indian and Pacific oceans, are now crowding out local species that are essential to the food chain, such as the endangered sardine, he said.

Tuna, opah, and billfishes such as marlins and swordfish are among the 0.1% of fish species that are warm-blooded. Evidence by an international team of researchers led by UC San Diego’s Scripps ...

Trawlers off southern India caught a deep-sea creature with a regrown tail later identified by scientists as a new species, a study said. Getty Images/iStockphoto Hundreds of feet down in the ...