Table 2. The mean number of additions to the set (maximum = 6.0) that was consumed by each monkey in each task, and for each trial within sessions of Experiment 1.

	Rotating Tray Task		Accumulation Task
	Trial 1	Trial 2	Trial 1	Trial 2
Gabe	2.6 (2,4,2,2,3)	2.4 (1,2,2,2,5)	4.4 (1,4,6,5,6)	3.6 (1,4,6,6,1)
Gambit	1.0 (1,1,1,1,1)	1.0 (1,1,1,1,1)	1.0 (1,1,1,1,1)	1.0 (1,1,1,1,1)
Griffin	3.8 (2,4,4,4,5)	4.0 (2,3,4,5,6)	4.0 (3,2,4,5,6)	4.2 (1,3,5,6,6)
Liam	5.0 (5,5,4,6,5)	4.2 (4,4,2,6,5)	6.0 (6,6,6,6,6)	5.8 (5,6,6,6,6)
Lily	4.4 (2,3,5,6,6)	4.8 (3,3,6,6,6)	5.0 (1,6,6,6,6)	6.0 (6,6,6,6,6)
Logan	3.8 (2,4,3,5,5)	4.4 (4,4,3,5,6)	6.0 (6,6,6,6,6)	6.0 (6,6,6,6,6)
Nala	2.8 (3,3,2,3,3)	3.6 (2,2,2,6,6)	2.2 (1,2,4,3,1)	2.6 (3,1,3,3,3)
Nkima	1.0 (1,1,1,1,1)	1.0 (1,1,1,1,1)	1.0 (1,1,1,1,1)	1.0 (1,1,1,1,1)
Wren	4.8 (4,5,3,6,6)	5.2 (4,5,5,6,6)	3.8 (2,3,2,6,6)	6.0 (6,6,6,6,6)

Note. The numbers in parentheses are the individual trial data for each monkey in each trial number within each task.