A, Average TEE at night and day in ~8–10-week old male WT and H4-TG#D mice at room temperature. B, Scatter plots of TEE at night and day over body weight in above mice. Averages of RER (C), food intake (D), and activity (E) at night and day in above mice. F, TEE partitioning of physical activity (PAEE) and food (TEF) in above mice. Sample size: n=4 for each genotype.