Fig. 5. Scaled midrange torques at applied internal fluid pressures. Midrange torques are those torques generated by a joint at an angle located midway between the maximum and minimum angles observed during locomotion. Values are means ± 2 S.E.M. X indicates that measurements were not taken. No torque was generated by the femur—patella joint of Hadrurus or by the patella—tibia joints of both scorpion species at all pressures tested.