Molecular evolution of UCP1 and the evolutionary history of mammalian non-shivering thermogenesis Hughes, David A. ; Jastroch, Martin ; Stoneking, Mark ; Klingenspor, Martin Abstract Publication: BMC Ecology and Evolution Pub Date: 2009 DOI: 10.1186/1471-2148-9-4 Bibcode: 2009BMCEE...9....4H