This story appears in the November 2012 issue of National Geographic ... between animals’ body structures and their movements. But he didn’t know what the bubbles did for the penguins.

Penguins are typically flightless but in this award-winning clip, hundreds of them defied their own limitation by taking a ...

Gentoo penguins have streamlined bodies and strong, paddle-shaped flippers that propel them up to 22 mph ... whale ventures close to the expedition ship. Video still by Nat Geo Partners With ...

Scroll below to explore some of these extraordinary impressions as seen through the lens of the National Geographic photographers. From a leaping emperor penguin ... one-day hike up its dormant ...