Zhao Chuang is a science artist working in Beijing,    1     job bridges science and art by painting and sculpturing ancient extinct species. Zhao reproduces each element described in papers on the history of life in an artistic way, and the     2     (blank) in scientific research are filled by his logic and imagination. His painting of a prehistoric flying animal became the cover of important scientific journal Nature in 2006, a highlight in his career     3     a science artist.