Figure 3
From: Field metabolic rates of giant pandas reveal energetic adaptations

The thermal neutral zone of the giant panda as determined from field metabolic rates (FMR) measured in this study and resting metabolic rates (RMR) and FMR measured by Fei. et al.15. The lower critical temperature is 8 °C and the upper critical temperatrure is 28 °C. The horizontal red line represents the predicted thermal neutral zone of the giant panda (see arrows). Field metabolic rates only give an approximate indication of the thermal neutral zone because the giant pandas are active and not resting.