Lmx1bf/f/p mice have normal thermosensory perception and activate heat conservation mechanisms normally in response to cold. A, Visible light (top) and infrared (bottom) images of thermocline. B, Summary data from thermocline experiments (n = 5 WT, 6 Lmx1bf/f/p). Note that the mean temperature that mice selected over time (top inset) and overall (bottom inset) were not different between genotypes. C, Thermographic images of tail (arrows) surface temperatures in WT (left) and Lmx1bf/f/p (right) mice. D, Summary data of tail surface temperature versus ambient temperature when mice were exposed to cold (n = 10 WT, 8 Lmx1bf/f/p). Data are mean ± SEM.