Strongest biological material
Last updated: December 10, 2017 at 5:29 am
Limpet teeth – The radula (tongue) of a limpet is covered in tiny teeth (less than 1 mm) that are made of a mineral-protein composite up to five times stronger than spider silk, and most man-made materials. The teeth actually excavate rock as the limpet feeds.
Asa H. Barber, Dun Lu, Nicola M. Pugno. Extreme strength observed in limpet teeth. Royal Society journal Interface, 2015 DOI: 10.1098/rsif.2014.1326
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Jeffrey Gallant is the Editor-in-Chief and Records Keeper of the Diving Almanac. He is also a contributing editor of DIVER Magazine, and the scientific director of the Greenland Shark and Elasmobranch Education and Research Group (GEERG). Jeffrey started diving in 1982.