evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.
Jean-Baptiste Lamarck was the first to propose his theory of the transmutation of species, the first fully formed theory of evolution.
Jean Baptiste Lamarck , known as one of the best-known early evolutionists. Unlike Darwin, Lamarck believed that living things evolved in a continuously upward direction, from dead matter, through simple to more complex forms, toward human "perfection." Species didn't die out in extinctions, Lamarck claimed.