Though Rubner and Cohen are certainly impressed by biological structures, they consider nature merely a starting point for innovation. Cohen says, "The natural structure provides a clue to what is useful But maybe you can do it better." Ultimately, they conside a biomimetics project success only it h the potential to make a usefurtool for people. "Looking at pretty structures in nature is not sufficient," says Cohen, "What I want to know is, can we actually transform these structures eo into[something] with true utility in the real world?