African penguins roost on Mercury Island in Namibia. African penguins hunt schools of fish together in groups, maximising their chances to get a quick catch.
Photograph by Thomas P. Peschak, Nat Geo Image CollectionEmperor penguins dive in Ross Sea, off Antarctica. They're capable of diving up to 1,750 feet.
Photograph by Paul Nicklen, Nat Geo Image CollectionAn Adelie penguin jumps on an iceberg in Antarctica.
Photograph by Ralph Lee Hopkins, Nat Geo Image CollectionA colony of king penguins are pictured in South Georgia, an island in the southern Atlantic ocean. King penguins have remarkable navigation skills; they can easily find their partner in a crowd of hundreds.
Photograph by Tim Lamán, Nat Geo Image Collection