Research Article

Arithmetic-Like Reasoning in Wild Vervet Monkeys: A Demonstration of Cost-Benefit Calculation in Foraging

Figure 6

“Foraging attempt” rates for simultaneous visibility. The “foraging attempt rates” were expressed as the percentage of “attempt made” trials over the total number of trials in each condition for each subject. The number of sessions completed was 20 for Mr. Funny, 17 for Meno, and 12 for Macho and Matiti. : , : . values are two tailed.
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