King penguin (Aptenodytes pcitachonica) incubating its single egg. Bay of Isles. A king 

 penguin carries its egg on the instep covered by a fold of the skin on the belly. The sexes relieve 

 each other in the duties of incubation 



A Johnny penguin (Pygoscelis papua) walking up to be chummy. The "Johnnies" are the 

 commonest penguins at South Georgia; their eggs make an important food supply for the Norwegian 

 whale-men. Temperamentally they are inquisitive, social with their kind, and quick to start a fight 

 with one another 

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