TY - RPRT TI - Unique allometry of group size and collective brain mass in humans and primates relative to other mammals AU - Hamilton, M. J. AU - Walker, R. S. J. PY - 2019 DO - 10.1101/829366 UR - https://www.biorxiv.org/content/10.1101/829366v1 ID - 10.1101/829366 ER -