This repository includes the R code and all data reported in the paper. It also includes pdf files for the HPQ for chimpanzees, the rater report HPQ for humans, and the self-report HPQ for humans. There a few things are worth noting about the data and code provided: First, the data sets include data from scales that were not used in the study (I noted this in the paper). These scales include the Type D Scale-14 (Denollet, 2005) and the Empathy Quotient (Baron-Cohen & Wheelwright, 2004). I have left these in the data in case anybody wants to use them. Second, the code that creates the supplementary report on the sensitivity tests requires that the R file is run first. The .bib file is required for that to work, too. Third, procrustes.R was written by Mark James Adams (mja@ed.ac.uk). It performs a targeted orthogonal Procrustes rotation, such as described in McCrae et al. (1996). It was, in fact, a translation of the SAS code provided on page 566 of that article. Fourth, today (4 May 2022) I discovered a minor error in the analysis code. I have corrected the bug and uploaded a new version dated today. The older version of the code is still in the directory. Fifth, in preparing the final version of the manuscript to send to the journal, I discovered an error in my code: instead of e3 (assertiveness) I had a3 (trust). The errors have been fixed in the most recent code and the published paper will reflect the correct analyses. If you have questions, please feel free to contact me directly. **References** Baron-Cohen, S., & Wheelwright, S. (2004). The empathy quotient: An investigation of adults with Asperger syndrome or high functioning autism, and normal sex differences. Journal of Autism and Developmental Disorders, 34(2), 163-175. https://doi.org/10.1023/b:jadd.0000022607.19833.00 Denollet, J. (2005). DS14: Standard assessment of negative affectivity, social inhibition, and Type D personality. Psychosomatic Medicine, 67(1), 89-97. https://doi.org/10.1097/01.psy.0000149256.81953.49 McCrae, R. R., Zonderman, A. B., Bond, M. H., Costa, P. T., Jr., & Paunonen, S. V. (1996). Evaluating replicability of factors in the Revised NEO Personality Inventory: Confirmatory factor analysis versus Procrustes rotation. Journal of Personality and Social Psychology, 70(3), 552-566. https://doi.org/10.1037/0022-3514.70.3.552