Limpet Teeth

I bet a lot of you didn't know about this! The star of today's topic is the teeth of the limpet, a small type of shellfish that lives attached to sea rocks! Limpets need to scrape rough rocks to eat the microalgae attached to them, and the strength of the teeth they use for this is incredible 🫨 According to scientific measurements, the tensile strength of limpet teeth reaches up to 6.5 GPa!! That probably doesn't make much sense to you, does it? 😅 Simply put, 6.5 GPa is about 5 times stronger than the highest grade special steel used for constructing skyscrapers or bridges, and even stronger than the Kevlar fiber used in bulletproof vests 😱😱 The reason limpet teeth are so hard is because extremely fine iron mineral fibers are densely intertwined within their protein structure 😆 I never imagined there would be a creature in this world stronger and harder than steel 🫨