"The strongest natural substance know to man is .... sea snail teeth"
Limpets are type of mollusks commonly found in marine habitats. Phylum Mollusca includes clams, snails, slugs, octopus, limits, and many other marine and terrestrial invertebrates. The limpets have a rasping tongue (a radula) that has teeth on it. The limpet teeth are already known to help them adhere to the turbulent rocky intertidal zone causing oval "scars" on the rock. Each of the fangs on the tongue are less than a millimeter in length but they have this strength.
Who knows, maybe limpet teeth will be used in more commercial applications soon?
For the scientific paper go to:http://rsif.royalsocietypublishing.org/content/12/105/20141326
For the article go to:http://ht.ly/JhzM7