radula
HoldTechniques
A tooth-studded tongue used by snails and limpets to scrape food from rock surfaces.
Why it's here
Placed in Hold: 1 article(s) of evidence from 1 source(s), led by research-stage coverage, with 0 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.
Evidence (1)
- 5Hacker News·7/10/2026researchLimpet Teeth Found Stronger Than Spider Silk
Researchers found that limpet teeth are made from a natural material that is stronger than spider silk on tensile tests. The teeth consist of goethite nanofibers embedded in a protein matrix, and their strength rivals high-end carbon fibers, though not the strongest synthetic materials such as graphene.