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

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

The gray seals slide out of their cages into the Baltic Sea near the Lithuanian coast, swimming off to new lives imperiled by climate change, pollution and shrinking fish stocks.

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

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

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

On a small, gently rocking research boat anchored just offshore in Chesapeake Bay, I lowered a sterile plastic bottle into ...

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

The little-known species with a “ribbon-like body” is believed by some cultures to be a harbinger of destructive events like storms and earthquakes.