Summit living isn’t a problem for this tiny mouse

Andean leaf-eared mice living at high altitude make more heat than those at sea level

An Andean leaf-eared mouse sits on a rock against a black background.

Some Andean leaf-eared mice (one shown) have adapted to living at high altitude in part by generating more body heat than mice living at lower elevations.

Marcial Quiroga-Carmona

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