Humans have drawn technological inspiration from fish scales going back to ancient times: Romans, Egyptians, and other civilizations would dress their warriors in scale armor, providing both protection and mobility. Now, using advanced X-ray imaging techniques, Lawrence Berkeley National Laboratory (Berkeley Lab) scientists have characterized carp scales down to the nanoscale, enabling them to understand how the material is resistant to penetration while retaining flexibility.
Click here for original story, Off the scales: Fish armor both tough and flexible
Source: Phys.org