Treehugger: Even a species that has benefited from temperature increases in the past may be hurt by excessive warming.
Adélie penguins (Phygoscelis adeliae) have lived in Antarctica for millions of years. They are one of only two penguin species found exclusively on the continent, the other being Emperor penguins (Aptenodytes forsteri). Unlike Emperor penguins, which trek for miles to breeding colonies located in ice-covered regions of Antarctica, Adélie penguins breed solely in ice-free areas along the coast,...