When Philip Sontag first visited Antarctica as a Ph.D. student, he brought back an unusual souvenir: a huge bag of penguin ...
Penguins come ashore to moult over a 3-4 week period; they are unable to go to sea to feed and sometimes restricted to their water intake. Photo: John Buckingham Unlike all other birds, penguins ...
Birds fly while penguins swim and dive. Penguins molt all their feathers at once, instead of replacing a few feathers at a time. They can also walk upright like humans. So why are penguins an ...
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