This Antarctic penguin sleeps 11 hours a day—a few seconds at a time, Science
Wildlife Guide: Macaroni Penguin Facts
Emperor penguin guide: where they live, how they breed and how they survive the cold - Discover Wildlife
Penguin - Wikipedia
Penguins originated in Australia and New Zealand -- not the Antarctic, new study finds
Meet Our King Gentoo Penguins - SEA LIFE Kelly Tarlton's Aquarium
Chinstrap Penguins Take Over 10,000 Small Naps a Day, Research Says
Penguin Encounters
A Satellite Spots 11 New Emperor Penguin Colonies
The Plight of Penguins - American Humane - American Humane
Baby Emperor Penguin Puppet, Puppets & Marionettes
Penguins: Sea and shore birds
Australia Used to be a Haven for Giant Penguins, Science
Gentoo Penguin Saint Louis Zoo
Wildlife Guide: King Penguin Facts
SeaWorld San Diego announces name of Emperor penguin chick - The San Diego Union-Tribune
Penguin Foundation • Recognising Penguin Awareness Day
The incredible king penguins of South Georgia - Swoop Antarctica Blog
The Penguin Walk - Wilder Institute/Calgary Zoo
Emperor penguins get Endangered Species Act protection – with 98% of colonies at risk of extinction by 2100, can it save them?