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A n emperor penguin's sex determines the nature of their courtship call—male vocalizations are composed of long, slow bursts with lower frequency tones than the female version. But calls of ...

The eastern rockhopper penguin breeds on Prince Edward Island and the Marion Islands in South Africa, the Crozet Islands and Kerguelen Islands in the French Southern Territories, Australia's Heard and ...

The Islands have the largest gentoo population in the world and second in Rockhopper penguins (Photo: S. Jaffray) According to the most recent count in the Falklands, the number of Gentoo penguin ...