Fig. 5. Mean (±S.E.M.) material properties of L. hesperus silk from the sheet/supporting thread region (SH/SSt) of webs (N=54), gumfooted capture threads (GF; N=47), and single strands of major ampullate silk forcibly pulled from spinnerets of anesthetized spiders (FS; N=52). Horizontal bars denote significant pairwise differences between means using post hoc Tukey's HSD tests for unequal sample sizes. (A) Young's modulus; (B) yield strain; (C) extensibility; (D) ultimate strength; and (E) toughness.