“…Research demonstrates that an engagement in and understanding of these requirements of cooperation emerges early in life (e.g., Brownell, ; Brownell & Carriger, ; Eckerman & Didow, ; Hay, ; Henderson & Woodward, ; Henderson, Wang, Matz, & Woodward, ; Ross & Lollis, ; Warneken, Chen, & Tomasello, ; Warneken & Tomasello, see Melis & Warneken, for review). In fact, by the age of 14 months, infants can structure the actions of two human agents as being towards a shared goal (Henderson et al, ; Henderson & Woodward, ). To illustrate, Henderson and Woodward () habituated 14‐month‐old infants to an event in which one actor (i.e., box opener) opened a box and another (i.e., toy getter) reached inside to retrieve a toy.…”