Arithmetic-Like Reasoning in Wild Vervet Monkeys: A Demonstration of Cost-Benefit Calculation in Foraging
Figure 5
Correct response rates over sessions for one-step subtraction. The correct response rates were calculated as the percentage of “attempt made” trials when the remainder was 2 and 1, and “attempt not made” trials when the remainder was 0, over the total 6 trials for each session for each subject.
