Fig. 7. (A) The instantaneous modulus of MA silk is plotted against strain. The Araneus curve is difficult to distinguish from the axis because of the relatively high modulus of Nephila. (B) To better distinguish the Nephila and Araneus curves, the data from A is plotted as log modulus versus strain. The solid squares indicate the initial stiffness of Nephila silk, and the solid circles indicate the initial stiffness of Araneus silk.