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

<table>“Foraging attempt” rates for successive visibility. The “foraging attempt rates” were expressed as the percentage of “attempt made” trials over the total number of trials in each condition. The number of sessions completed was 16.                                                                                        <svg height="7.9250002" id="M47" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 20.075001 7.9250002" width="20.075001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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International Journal of Zoology

fig8

Figure 8

Figure 8: Arithmetic-Like Reasoning in Wild Vervet Monkeys: A Demonstration of Cost-Benefit Calculation in Foraging 