Fig. 2. Temperature dependence of in vivo whole organism performance traits in Trapelus pallida. Values are means ± s.e.m. (N=10). Note that bite force (filled circles) remains at almost 80% of its maximal capacity for nearly the entire range of temperatures tested. Sprint speed (open circles) on the other hand is strongly dependent on temperature and drops below 80% of its maximal capacity at a temperature of about 30°C.