Tiny Spider Engineers Use Silk Pulley Systems To Lift Prey 50 Times Their Weight – IFLScience

Depending on your persuasion, images of spiders lifting prey seemingly far superior in size to them will either impress or terrify you (anyone remember huntsman vs possum?). Spider silk is famously strong, but even armed with a nylon rope most of us would struggle to pull a bison up onto a ledge, so how do little spiders do it?
New research published in the Journal of the Royal Society Interface has solved this puzzle after studying the hoisting power of five different spiders from two species of…

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