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To Make Fracture-Resistant Concrete, Let a Sea Urchin Be Your Guide – Atlas Obscura

Strong and flexible building materials, inspired by ocean life. SEA URCHINS ARE COVERED BY a thicket of spines. In the vernacular of Middle English, urchun meant “hedgehog,” but the echinoderms’ sharp, sometimes venomous protrusions are anything but cute. But some researchers propose taking another perspective on them by looking closely at their internal structure. …