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Sunday, January 12, 2014
Antarctic Penguins Adapting to Warmer Temperatures: Study
Antarctic emperor penguins have been able to shift their breeding grounds above ice cliffs as high as 30 meters (100 feet), suggesting they’re more resilient to a warming climate than previously thought, according to a study.
Penguins in four colonies bred during 2008, 2009, and 2010 on sea ice, their preferred terrain because it’s easier to reach the fish they eat, according to a paper in the journal PLOS ONE. In 2011 and 2012, years when the sea ice formed only after the birds’ breeding season had begun, the penguins moved to the ice shelf, where continental ice floats out over the sea.