Thanks to the hard work of my fantastic collaborator, Suzanne, our new paper is out documenting the repeated loss of the uncoupling protein 1 in amniotes, specifically early in the reptilian lineage, and multiple times in mammals.
Find it here if your interested: http://rsbl.royalsocietypublishing.org/content/13/1/20160749
McGaugh, S, TS Schwartz. 2017. Here and there, but not everywhere: repeated loss of uncoupling protein 1 in amniotes. Biology Letters 13(1): 20160749. doi: 10.1098/rsbl.2016.0749