Fig. 5. Exemplar dynamic mechanical curves for each of the five fibrous silks spun by Argiope argentata. Gray denotes the loss tangent (tan ) and black denotes the storage modulus (E'). Loss tangent could not be measure effectively for capture spiral due to the extremely low magnitude of the loss modulus. Note the difference in the scale of the x axis for capture spiral (E) relative to other types of silk (A–D).