North of the Polar Front, where the water is warmer and saltier, there's now the eastern lineage—Pygoscelis taeniata—on the Crozet, Marion and Macquarie Islands, and the northern lineage—Pygoscelis ...

The four-foot-tall Emperor penguin of Antarctica may be the most iconic member of this unique family of birds, but 17 other species of penguins populate the Southern Hemisphere, many of them confined ...

A new study indicates that the adaptable marine birds evolved into distinct lineages as isolated populations shifted to match their environmental conditions over time. The work has implications for ...

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