Fig. 5

Results of the matched trial bees for the two colors offered. The dotted line for each figure is the 0-baseline values as determined in Eq. 1. The trend change that appears at 300 s was not the result of any experimental modification and time effects were non-significant. a: Mean percent time on the blue half of the shuttlebox when yellow was safe (non-shock). b: Mean percent time on the blue half of the shuttlebox when blue was safe (non-shock)