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It’s a matchup worthy of a late-night cable movie: put a school of starving piranha and a 300-pound fish together, and who comes out the winner? The surprising answer—given the notorious guillotine-like bite of the piranha—is Brazil’s massive Arapaima fish. The secret to Arapaima’s success lie in its intricately designed scales, which could provide “bioinspiration” for engineers looking to develop flexible ceramics.
See also: http://www.insidescience.org/?q=content/piranha-proof-armor-inspires-tough-materials/742
