Limpets' teeth set new strength record

Limpet teeth beat spider webs as the strongest known biological material. But what are the strongest substances on Earth?

Image 1 of 6

Limpets' teeth

(Image credit: A Barber University of Portsmouth / N Pugno University of Trento)
Image 1 of 6

Limpets' teeth

(Image credit: A Barber University of Portsmouth / N Pugno University of Trento)

For years, spiders' silk was thought to be the strongest biological substance on Earth, but now there is a new contender for that crown: the teeth of limpets.

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