Researchers say that these color mutations usually don’t have a measurable impact on survival or behavior. Indeed, as Mauritzen notes, the penguin and the seals he photographed didn’t seem to ...

The pattern is similar to that of the famous big cat, though the seal's coat is gray rather than golden in color. This seal is sometimes called the sea leopard, and the resemblance is more than ...

The seals’ silver-gray fur makes them blend in with the color of icy roads that are dusted with sand in the winter months. People try to avoid them, but two of the seals have died, run over by ...