Study sheds light on how mountaineering mice survive extreme environments

Researchers have discovered that the Andean leaf-eared mouse possesses unique genetic and physiological traits that allow it to survive at extreme high-altitude environments. The study provides insights into how mammals adapt to severe hypoxia.
Even for elite mountain climbers, reaching the summits of the Central Andes is an arduous undertaking. Atop these peaks — some of which reach elevations of almost 7,000 meters — it’s a perennial winter, with temperatures rarely rising above freezing. The air contains less than half the oxygen available at sea level.
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