As has been mentioned elsewhere, the reuters link is pretty much fluff (lobster, lobster, lobster) in that the RMIT paper https://www.liebertpub.com/doi/10.1089

As has been mentioned elsewhere, the reuters link is pretty much fluff (lobster, lobster, lobster) in that the RMIT paper https://www.liebertpub.com/doi/10.1089/3dp.2020.0172 https://www.liebertpub.com/doi/10.1089/3dp.2020.0172 discusses Bouligand structures and uses the lobster as a biological example. Non biological examples abound. Structures for improving adhesion and strength in FDM printing (which arguably includes pumping concrete) is important and continually researched - basic, commercial and diy https://www.youtube.com/playlist?list=PLEOQTmIWJ_rmoqdFUCgKrNu_BsMVB7e1V https://www.youtube.com/playlist?list=PLEOQTmIWJ_rmoqdFUCgKr...