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Darwin's bark spider spins the toughest biological material yet measured, a silk more than ten times tougher than Kevlar, and strings its web across rivers on bridge lines up to 25 meters long
A spider in Madagascar makes a thread that outperforms anything in the materials labs of the human world. Its dragline silk is the toughest biological material scientists have yet measured, able to soak up more than ten times as much energy as Kevlar before it breaks. The spider that spins it does something no other known spider does at the same scale. It slings its web straight across rivers and streams, anchored to the banks on lines that can …
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