Table 1.

Information about the monkeys and their training in Phase 3

	Sex	Age in Years	Choice Rule	Trials to Criterion
Capuchin Monkeys
Bias	Female	30	Smaller	2,127
Gambit	Female	21	Smaller	2,952
Gonzo	Female	11	Smaller	315
Gretel	Female	13	Larger	266
Griffin	Male	20	Larger	323
Lexi	Female	9	Larger	147
Liam	Male	12	Smaller	229
Logan	Male	12	Larger	93
Mason	Male	18	Smaller	2,338
Nala	Female	15	Larger	510
Nkima	Male	9	Smaller	268
Star	Female	40+	Larger	7,230
Widget	Female	9	Smaller	1,061
Wren	Female	14	Larger	643
Rhesus Monkeys
Chewie	Male	17	Larger	183
Han	Male	15	Larger	42
Hank	Male	36	Larger	176
Lou	Male	26	Larger	151
Murph	Male	26	Smaller	836