Figure 1.

Tail-assisted walking in the chamaeleon B. thieli. (a) Representative video images illustrating how the tail curls and contacts the substrate (each colour illustrates a successive contact phase) during locomotion on a large branch. (b) Volume rendering of the tail in Brookesia showing the gradual change in morphology from proximal to distal with a decrease in vertebral ornamentation, and an increase in the development of the ventral tail tendons. Arrow heads point towards a proximal and distal vertebra illustrated in (c) and (d), respectively. These changes ensure increased mobility of the distal part of the tail. Scale bars, (b–c) 1 mm; (d) 0.25 mm.