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52:16 Into thinner air: How pikas live on the roof of… Into thinner air: How pikas live on the roof of the world and implications for their persistence	Into thinner air: How pikas live on the roof of the world and implications for their persistence Recorded: April 17, 2019 highest elevations pica species human dominated north america dominated area oxygen concentration species level food source year period heat transfer previous study oxidase protein systems theory fold difference low elevation deer bit bigger individual level hypoxic stress time scale burrowing species habitat (ecology) terminology folded protein food web 4000 meter geography terminology single individual oxygen locally extinct meter gradient mammals of india snow leopard tibetan yak environmental conservation meter site invasive species low elevation 6000 meters protein efficiency change elevation species range climate change sample collection high elevation montane ecology complex system previous range blood sample climate history efficient protein penguin scales mammals of asia gene expression lower elevation monotypic mammal genera cool result high elevation pica american pie oxygen phosphorylation pathway deer mice genes highlighted sea level length range limit genetic differences mountain system proteins topography elevations site population genetics extinction main thing oxidative phosphorylation pathway mammals of china cold stress genetic adaptation hypoxia tolerance takes place philosophical terminology continents current species range long term persistence amino acid 100 years darker green museum collections physical geography environmental terminology main reason percent oxygen generate oxygen concentrations cold environment higher elevation 5000000 years candidate gene burrow systems 5000 meter site tibetan plateau limited oxygen 100 percent caption complete economics terminology human impact snow global surface temperature m.r. geodesy 5000 meter average rate broad elevation current range human population sequencing data big cats of india elevation range mammals of pakistan human spaceflight lower elevations species movement upward thought 50000000 years elevations species effects species gene elevation pikas pica expression adaptations samples elevations change genes meters climate range study lot pathway differences protein From Gateway Science Museum 0 likes 145 plays 0