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Fig. 1. Overview of bungee jumping spiders. (A) A spider bungee jumping with
pre-made silk of length xo. The silk attachment point is
marked with a red star. When the silk starts to take the load of the spider,
xo below the attachment site, the silk is stretched
x before the spider comes to a stop. (B) Worst-case scenario
in which the spider falls 2xo before silk is loaded.