Figure 2.

Latency (time elapsing between test spider (Portia africana) arriving at the top of the Viewing Tower and crossing the Access Ramp). Experimental: prey arrangement or prey size visible from top of Viewing Tower different from prey arrangement or prey size visible from top of Starting Tower. Control: prey arrangement or prey size visible from top of Viewing Tower same as prey arrangement or prey size visible from top of Starting Tower. In all experiments, prey number was constant. Boxes show medians and upper and lower quartiles, and whiskers show minimum and maximum values. All comparisons n.s. See table 1 for details of each experiment.