Additional file 2.

Experiment 2: Ramp choice using a "softer" criterion for defining ascents (cf. Figure 6). Tabulated are the type of preceding training and number of decisions to either pass or ascend at each of the six offered ramps, and the resulting percentage of ascents. All ascents of more than 20 cm were considered.

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Grah et al. Frontiers in Zoology 2007 4:12   doi:10.1186/1742-9994-4-12