We examine the concept of evolution in technology and biology. It appears that most of the trends in these two domains have different meanings and development. Engineering is older than mankind, because numerous animals make tools and change the environment for their needs and requirements. The conflict of strategies in technology and biology can cause serious problems. There is a challenge for the dialectical synthesis of these two opposites. In practice it means that the technology should address its roots and see how biological functions are carried out. This can teach us a lot, because biological solutions are often more reliable, energy efficient and cleaner than conventional technology.