“…Specifically, emotion is expressed during social engagements early in life (Bard, 2005; van Lawick‐Goodall, 1968), engagements with objects occurs early in the first half of year of life (Bard, Bakeman, et al, 2014; Goodall, 1986; Lonsdorf, 2005), and triadic engagements, including gestures and social referencing, appear around 12 months (Bard, 2017; Bard, Bakeman, et al, 2014; Bard, Dunbar, 2014; Lonsdorf, 2005; C. L. Russell et al, 1997; van Lawick‐Goodall, 1968). Bard, Dunbar, et al (2014) argue that chimpanzee infants share a similar developmental pathway to triadic joint attention (e.g., secondary intersubjectivity) as is found in human infants (e.g., Racine et al, 2014; Trevarthen & Hubley, 1978).…”