“…Extended Theory of Mind as Another Distinct Feature of Humans. Many warm-blooded species appear to have independently evolved self-awareness as defined by various criteria, including the mirror self-recognition test (Anderson & Gallup, 2015;Candland, 1995;Gallup, 1977;Parker, Mitchell, & Boccia, 1994;Ross et al, 2017;Suddendorf & Butler, 2013), which has been passed by individual members of various species including chimpanzees (Anderson & Gallup, 2015;Eddy, Gallup, & Povinelli, 1996;Gallup, 1977;Kitchen, Denton, & Brent, 1996;Povinelli, Eddy, Hobson, & Tomasello, 1996;Rajala, Reininger, Lancaster, & Populin, 2010), elephants (Dale & Plotnik, 2017;Plotnik, de Waal, & Reiss, 2006), dolphins (Morrison & Reiss, 2018;Reiss, 2011;Reiss & Marino, 2001), corvid birds (Clary & Kelly, 2016;Prior, Schwarz, & Güntürkün, 2008), and possibly even trained monkeys (Huttunen, Adams, & Platt, 2017;Rajala et al, 2010;Toda & Platt, 2015). The question arises whether such individuals with awareness of their own self are also fully aware of the self-awareness of others, a state that is often referred to as "theory of mind" (Apperly, 2010;Baron-Cohen, Leslie, & Frith, 1985;Bedny, Pascual-Leone, & Saxe, 2009;Crockford, Wittig, Mundry, & Zuberbuhler, 2012;Dumontheil, Apperly, & Blakemore, 2010;Emery & Clayton, 2009;Gentner & Goldin-Meadow, 2003;Kappeler & Silk, 2010;Krupenye, Kano, Hirata, Call, & Tomasello, 2016;Meltzoff, 1999;…”