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Supplemental Information

Data and sources used in analyses.

Appendix 1: Data values for temperature (Temp.; o C), red blood cell volume (RBC; ml/100 g BM), body mass (BM; g) and relative heart mass (Heart; % body mass) used in analyses. Sources of data are listed in brackets.

DOI: 10.7287/peerj.preprints.154v1/supp-1

Additional Information

Competing Interests

There are no competing interests.

Author Contributions

James JF Gillooly conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper.

Rosana Zenil-Ferguson performed the experiments, analyzed the data, wrote the paper.


No funding sources were used for this work. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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