The strongest known biological material isn't spider silk... | 펀팩트 위키 | funfact.wiki
The strongest known biological material isn't spider silk but limpetteeth. Measured in 2015 at 3.0–6.5 GPa strength, they beat spider silk (~4.5 GPa). Scraping algae off rock, they embed goethite fibres in soft protein, tough at any size.