Broad, K. D., Curley, J. P., & Keverne, E. B. (2006). Mother-infant bonding and the evolution of mammalian social relationships. Phil. Trans. Biol. Sci., 361(1476), 2199–2214.
toggle visibility
Dunbar, R. (2003). Evolution of the social brain. Science, 302(5648), 1160–1161.
toggle visibility