Hare, B., Rosati, A. G., Kaminski, J., Bräuer, J., Call, J., & Tomasello, M. (2010). The domestication hypothesis for dogs' skills with human communication: a response to Udell et al. (2008) and, Wynne et al. (2008). Animal Behaviour, 79(2), e1-e6. doi:10.1016/j.anbehav.2009.06.031.