TY - RPRT TI - In Rift Valley settings with a feedback loop, assortative mating for versatility predicts hominin brain enlargement in some detail AU - Calvin, W. H. PY - 2017 DO - 10.1101/164780 UR - https://www.biorxiv.org/content/10.1101/164780v1 ID - 10.1101/164780 ER -