Researchers live with penguins (except when they dive) to try and figure out how the birds dive so deep without killing themselves.
Penguins are aquatic, flightless birds. They lay eggs, have feathers and yet are powerful swimmers. Emperor penguins can stay underwater up to 30 minutes, in essence flying underwater. They live in the Southern Hemisphere, including Antarctica and New Zealand. LiveScience.com has penguin pictures, feature article and news of the latest penguin discoveries.