“…Others have focused on related areas like learning and environmental adaptation (Shennan & Steel 1999), human ecology, information storage and cultural learning (Bentley & O´Brien 2013;Henrich 2004), evolution of modern thinking and increased working memory (Coolidge & Wynn 2009), the emergence of the social brain (Dunbar 1998;Gowlett et al 2012), co-evolution of hominin tool-making teaching and language (Morgan et al 2015), human evolution in the light of extant non-human tool users (Whiten et al 2009), neuroarchaeology and cognition (Stout et al 2015;Stout & Khreisheh, this issue), the successive development of a uniquely long period of human childhood, allowing imaginary play to expand (Nielsen 2011;Nowell 2010; this issue), stone tools and the evolution of human cognition (Nowell & Davidson 2010), to mention a few of many areas (for overview, see e.g. Beaune et al 2009;Renfrew et al 2009).…”