Fracture mechanics and form-structure-function relationships were studied in the hierarchically structured endocarp of the coconut (Cocos nucifera). We mechanically tested various endocarp sample types: (1) whole endocarp; (2) arch-shaped samples prepared from the endocarp in either an equatorial or a meridional orientation; (3) small endocarp samples. The last-mentioned were tested e... https://macorners.shop/product-category/metal-sign/