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Files in this Data Supplement:
Table S1. Complete database of byssal thread properties. Material properties of the byssal threads of selected bivalve molluscs. Empty cells represent missing values. ‘Engineering’ stress and strain (σE, εE) are defined as σE=F/A0 = force/unit initial area, εE=ΔL/L0= change in length/initial length; ‘true’ stress and strain (σT, εT) are defined respectively as σT=σEexp(εT) (assuming constant volume, i.e. a Poisson’s ratio of 0.5) and εT=ln(L/L0). Yield stress and strain were defined as a sharp drop in stiffness at a characteristic stress and strain level; thread stiffness was determined both for the initial loading of the thread and at thread failure. The area under the stress−strain curve (the energy absorbed per unit volume or the toughness of the material) was determined by fitting a polynomial to the curve and integrating over the total strain. A Microsoft® Excel® version of this file is available from the authors upon request.
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