Surviving the winter: Figure 6 The effect of declining temperatures on the metabolic rate of (a) an Eskimo dog, (b) an arctic lemming and (c) a tropical raccoon. Note that temperature decreases from left to right along the horizontal axis. Data from Irving (1966).

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Figure 6 The effect of declining temperatures on the metabolic rate of (a) an Eskimo dog, (b) an arctic lemming and (c) a tropical raccoon. Note that temperature decreases from left to right along the horizontal axis. Data from Irving (1966).

1.3.2 Birds and mammals

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