Whatever scientists discover could have implications for human diseases related to oxygen, including heart disease and lung conditions. Motivated by reported sightings, researchers from the US and Chile organised a scientific expedition to the Puna de Atacama and captured this yellow-rumped leaf-eared mouse ( Phyllotis. It is the most widespread member of the genus. Scientists think they might survive by eating bits of debris blown around by the wind, possibly insects and lichens, but they may also have slower muscle metabolism and a cardiovascular system that has adapted to such extreme conditions. The yellow-rumped leaf-eared mouse (Phyllotis xanthopygus), otherwise known as the Patagonian leaf-eared mouse, is a species of rodent in the family Cricetidae and order Rodentia. ![]() They caught mice from four different species at various elevations, including the one found at the summit. It’s a yellow-rumped leaf-eared mouse (Phyllotis xanthopygus rupestris) and it was caught by Jay Storz, a University of NebraskaLincoln biologist, on the 22,000-foot Andean summit of. ![]() Llullaillaco is at the edge of the Atacama Desert and offers particularly unforgiving conditions-scientists are now attempting to understand just how exactly the mice survive them. "No other species does that," says one expert. This species dwells at higher elevations than. The yellow-rumped leaf-eared mouse was known to be living in the foothills and mountains of the Andes, sometimes as low as sea level, giving it an "unprecedented" 22,000-foot elevation range, per NatGeo. The worlds highest-dwelling mammal is not a hardy goat nor a red-blooded big cat, but a tiny species of rodent adorably called the yellow-rumped leaf-eared mouse. A yellow-rumped leaf-eared mouse ( Phyllotis xanthopygus ), perched on a researcher's glove, at high-altitude on the slopes of Llullaillaco volcano. "Nobody expected mice to be living that high," the biologist says. Among numerous trapping records at altitudes >5000 m, we captured a specimen of the yellow-rumped leaf-eared mouse ( Phyllotis xanthopygus rupestris) on the very summit of Llullaillaco at 6739 m. The yellow-rumped leaf-eared mouse otherwise known as the Patagonian leaf-eared mouse is a species of rodent in the family Cricetidae and order Rodentia.
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