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Thin air. Frozen temps. Toxic food. How these mice survive extreme elevations

Summary by Science
Scientists crack the secrets of Andean leaf-eared mice living near the top of the world

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One study reconstructs the genetic and metabolic mechanisms that allow South American orejudos mice to live at more than 6,000 meters

·Spain
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In the 1990s, there was a miniature hero who appeared on TV and was loved by Korean children. It was Mighty Mouse, who wore a red cape like Superman, flew through the sky, and defeated villains. Scientists have now discovered Mighty Mouse in the Andes Mountains. It is a mouse that lives on a volcano 6,700 meters above sea level. It has been revealed that this mouse, which lives at the highest altitude on Earth, survives in oxygen-deficient and s…

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The Andean orejudo mouse is the mammal that lives at the highest altitude in the world thanks to the fact that it has developed metabolic and genetic adaptations that allow it to thrive, among them an unexpected ability to detoxify poisonous plants, to survive in extreme environments.This is explained in a study published this Thursday in Science magazine and elaborated by scientists belonging to institutions of Canada, Chile, USA and United Kin…

·Madrid, Spain
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A study published in Science magazine explains the adaptations that allow the Andean orejudo mouse to survive in volcanoes of more than 6,700 meters, an environment with extreme cold and very little oxygen.

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The peaks of the Andes mountain range are the closest thing on Earth to the surface of Mars. At 6,700 meters of altitude, the air temperature remains almost permanently below zero, oxygen levels are reduced by half and radiation is intense. This desert moor is a hell in which vegetation, water and food are scarce; there is only rock and ice. When archaeologists arrived there in the 70s and 80s they discovered several Inca ruins with human mummie…

·Spain
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Science broke the news on Thursday, July 9, 2026.
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