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. Author manuscript; available in PMC: 2009 Sep 1.
Published in final edited form as: Am J Physiol Regul Integr Comp Physiol. 2008 Apr 16;294(6):R1968–R1979. doi: 10.1152/ajpregu.00778.2007

Figure 2.

Figure 2

Representative body temperature traces in female mice for 5 days at the end of a period of entrainment to a 12L:12D photocycle and then for 15 days on continual dim red light DD. Traces are shown for a Prokr2+/+ (top) and a Prokr2+/m mouse (second panel) and for two Prokr2m/m littermates (lower panels). * indicates likely proestrous days. Note the single bout of torpor but disorganized circadian temperature profile in one Prokr2m/m female (third panel), and the almost daily occurrence of torpor in the other Prokr2m/m female (bottom).