Fig. 1. Adult for^R and for^s display distinct locomotor activities. Adult flies were put through activity monitor trials as described. The results show activity over the course of the first day (A) after the initial rest period, of for^R (Ai) and for^s (Aii) flies, and on day 3 (Bi,ii). Results of analysis of the area under the major peaks (data points 10-25 on day 1; 110-125 on day 3) are shown in (Aiii, Biii). Values (y axis) are arbitary units ± S.E.M. (N=9-10). ^*P<0.05.