Tough teeth The teeth of limpets -- small marine molluscs famous for their tiny shells that resemble umbrellas -- are the world's strongest known biological structure. The teeth, described in a new ...

LONDON (Reuters) - Spider silk may lose its claim as the strongest known natural material after researchers found that limpet teeth have more mettle. Spider silk is hailed by scientists for its ...

It's as strong as steel and tough as a bulletproof vest, capable of withstanding the same amount of pressure it takes to turn carbon into a diamond. Scientists have discovered nature's newest, ...