Life's Universal Scaling Laws, II.

Another place where those scaling laws show up is in metabolic rate. It turns out that if you plot the metabolic rate of cells from mammals of varying masses in culture vs. the mass of those mammals, and superimpose on top of it the metabolic rate of the same kinds of cells in the mammals vs. the mass of those mammals, the lines will intersect at the theoretical minimum mass of mammals... This intersection occurs at just about the mass of the shrew.

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