A photograph by a whale-watching naturalist captured a seemingly bewildered seal in the mouth of a humpback whale after the giant marine mammal accidentally gulped it last Thursday in the waters ...

Aquarium staff euthanized Barney, a "super senior" harbor seal. He showed signs of "an acute decline," according to a post on the aquarium's website.

Exclusively in Iliamna Lake, Alaska’s largest body of freshwater, lives a small population of rare freshwater seals — one of only two freshwater harbor seal populations in the world. Alaska natives, ...

When the carcasses of headless baby harbor seals began emerging on the Northern California coastline close to a decade ago, researchers hadn’t seen anything like it before. The thick mats of ice ...

The seal colony at the mouth of the Delaware Bay has grown in recent years. In the wintertime, gray and harbor seals are often spotted resting on the breakers or, occasionally, on the beach.