Fig. 9. Mean (±S.E.M.) dynamic properties for sheet/supporting threads (SH/SSt; N=12), gumfooted lines (GF; N=21), and forcibly silked major ampullate threads (FS; N=14). All properties differed among silks, except strain at max. loss tangent (one-way ANOVAs, F_2,35=5-13, P at least <0.005). Post hoc comparsions of means using Tukey's HSD tests for unequal sample sizes indicated that the performance of the forcibly silked major ampullate fibers was significantly different from sheet/supporting threads and gumfooted lines for all properties except strain at max. loss tangent (P at least <0.05).