Behavioural performance results.

<p><b>A:</b> net rate of correct answer (y-axis) is shown as a function of species (x-axis) and opponent condition (<i>RB</i>: blue, <i>0-ToM</i>: green and <i>1-ToM</i>: red). Errorbars depict standard error of the mean. <b>B:</b> condition-specific performance pattern averaged across species. <b>C:</b> simulated performance pattern of 0-ToM. <b>D:</b> simulated performance pattern of cooperative 1-ToM. <b>E:</b> performance pattern of human adults [<a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1005833#pcbi.1005833.ref049" target="_blank">49</a>]. Graphs B to E use the same colour coding as in A.