These images from the Smithsonian Magazine Photo Contest show just why penguins have waddled into our hearts ...

Once thought to mate for life, more penguins seem to be setting out in search of new partners come breeding season. Here’s ...

Measuring roughly 1,350 square miles (3,500 square kilometers) across, A23a is the world's largest and oldest iceberg ...

This is typically done by sampling their feces or what is inside the stomachs of dead birds, but this new method will help ...

You may look more foolish walking than those adorable, wingless, black-and-white birds do when they waddle naturally, but ...