“…Experiments reported during the past 15 years have led to the suggestion that metacognition may be found in nonhuman primates (Hampton, 2001;Hampton, Zivin, & Murray, 2004;Kornell et al, 2007;Smith, Shields, Allendoerfer, & Washburn, 1998;Smith, Shields, Schull, & Washburn, 1997;Smith, Shields, & Washburn, 2003) and in a bottlenosed dolphin (Smith, Schull, Strote, McGee, Egnor, & Erb, 1995). These experiments generally require the subject either to make a psychophysical response or to take a memory test.…”