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Fig. 5. Supercontracted properties of Nephila MA silk. Note that the
individual samples were not tested to failure, but to the highest strain
possible with each experimental setup. (A) The completed data set; (B) the
average behaviour of the data set. Predicted values were averaged from all the
curves for which a value was available. Filled squares represent values
averaged from all 24 tests and open squares represent values averaged from all
tests for which a value at that extension was available. The numbers above
each data point are the number of curves included in the average. The
calculated average curve is fitted to a third order polynomial,
266.23x3+81.42x2+89.11x–2.21,
r2=0.97. Error bars are one standard deviation. Each
sample was from a different spider.