the abstract for an academic paper Utilization of bionics for developing self-healing functional polymer that can heal damage with restorability is particularly attractive for sustainable societies. Herein, inspired by chamaeleonida, healable photochromic polymer networks with hieratical structure incorporating dynamic hydrogen-bonding interaction and photochromic spirooxazine (SP) were prepared. The self-healing ability (complete recovery of scratch as well as restoration against 1900% strain and 1.9 MPa tensile stress under moderate condition) is originated from many sacrificial junctions created by hydrogen-bonding interactions that also enhance extensibility (from 600% to 2600%). The covalent framework can prevent macroscopic deformation and maintain elasticity. This combination of high extensibility, good self-healing ability and smart photochromic property in thermosetting polymers should largely improve their applicability and reliability in various materials and devices