Figure 2
The number of tool-use locations per time-step through time when the number of Sources is 500 (high-density) and the number of Trees is 2000 (high-density). The number of tool-use locations increases (y-axis) due to the repeated displacement of Pounding Tools away from their Sources. (A) Tree locations do not change through time. (B) Tree locations change through time (see text). Each line represents an individual iteration of the model. Under these conditions, the number of tool-use locations plateaus at a higher value when Trees change locations over time. It is expected that the number of Trees that become accessible for tool use would eventually reach the maximum number of Trees in the model. However, this remains unclear given that the simulation ended at 75,000 time-steps.
