Fig. 4. Performance of bees with five or seven trials of training in stage 2. Conventions and arrangement are as in Fig. 2. (A) No stage 1 training. Bees in stage 2 were assisted in trials 1 and 2, so these trials are not plotted. (B) Twelve trials in stage 1, with bees assisted on the first two trials, which are not plotted. B, blue; Y, yellow.