Abstract
THE silk of spiders first evolved 400 million years ago and orb webs emerged 180 million years ago1, 2; present-day spiders' webs are structures efficiently engineered by nature. The planar orb web of the garden spider Araneus diadematus has evolved with the prime function of capturing fast-moving and, on a relative scale, massive insects. We have now analysed the structural engineering of a complete web, using computer modelling, to incorporate the measured time-dependent stress–strain characteristics of the two chief types of web silk. With this model we unexpectedly discovered that aerodynamic damping plays a crucial role in prey capture, an observation that we confirmed in laboratory experiments on real webs.
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Lin, L., Edmonds, D. & Vollrath, F. Structural engineering of an orb-spider's web. Nature 373, 146–148 (1995). https://doi.org/10.1038/373146a0
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DOI: https://doi.org/10.1038/373146a0
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