There was a mismatch between the units reported for the base metabolic rate, c0, in figure 3c in  and the corresponding units in the main text and labels of figure 3a,b. Instead of the rate c0 being shown in 1 per hour, the label of the x-axis in figure 1c was given in 1 per second. The corrected figure is shown below. None of the findings of the paper have altered.
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