Piranha-Proof Armor Inspires Tough Materials

Arapaima fish's scales provide lessons for synthetic products.
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  1. Piranha - A fish found in South American that is known for its sharp teeth.
  2. Arapaima - A fish found in South America with specially designed scales that can withstand the bite of a piranha fish.
  3. Biomimetics - The study of biological materials from living organisms, with the goal of mimicking them to produce better synthetic materials.
  4. Ceramic - A nonmetallic material that is often strong and hard, but usually brittle and inflexible, except in some cases, such as the natural Arapaima scales.