An ostrich’s long neck keeps its head cool in warm weather by radiating heat away from the body, and it’s possible ostrich necks could evolve to be even longer to adapt to a warming world.
The ostrich’s long, flexible neck is an important means of staying cool in the heat and keeping warm in cooler weather, and it may have evolved partially as an adaptation to wildly variable climatic conditions.
Large animals are vulnerable to rapid temperature changes because their big bodies tend to hold on to heat. To investigate how they evolve thermal tolerance, Erik Svensson at Lund University, Sweden, and his colleagues looked to the world’s largest bird: the common ostrich (App + Web
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