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. 2005 Jan 3;102(2):385–389. doi: 10.1073/pnas.0408304102

Fig. 3.

Fig. 3.

Mean shear stress in clean, dirty, and self-cleaned gecko digits. Dotted line indicates minimum shear stress required to support one gecko's body weight (43 g) by a single toe (area = 0.19 cm2). After clogging with >2.5-μm-radius microspheres, four steps on clean glass restored setal force to a level sufficient to support the gecko by a single toe.