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. Author manuscript; available in PMC: 2020 Apr 12.
Published in final edited form as: Science. 2019 Mar 7;364(6436):184–188. doi: 10.1126/science.aar2038

Fig. 2. The percentage of diploid CM inversely correlates with standard metabolic rate, body temperature, and plasma total T4 levels.

Fig. 2.

(A) Effect of standard metabolic rate (SMR, in W/kg0.75) on the content of diploid CMs. SMR is defined as MR/M0.75 (MR, metabolic rate; M, body mass). The data are fit by regression lines (red for vertebrate species and blue for mammalian species). (B) Effect of body temperature (Tb, in degrees celsius) on the percentage of diploid CMs. (C) Effect of plasma T4 levels on the frequency of diploid CMs. In (A) to (C), analyses include all species that have published physiological data to our knowledge. r2 denotes the coefficient of determination. For visual clarity, only a subset of ectodermic and endothermic species are labeled. All data are presented in tables S2 to S4.