The mean angles and standard deviations (SD) of the humerus in relation to the shoulder plane in Megachiroptera and Microchiroptera during climbing.

Mean angle below 180° indicates the humerus did not move past the plane of the shoulder. Mean angles above 180° indicates movement of the humerus past the shoulder plane. N = number of individuals used. There were no significant differences among species within megachiropterans (F-Ratio = 0.54, DF = 22, P = 0.66) and within microchiropterans (F-Ratio = 1.38, DF = 20, P = 0.30). The two individuals of C. brachyotis were not used in this analysis because they would barely move their forelimbs when climbing. Neither individual could fly, so perhaps they had injuries to the forelimbs. OBC did not know their history.