Through time human activity has led to environmental changes which have caused natural selection to evolve. The theory of natural selection proposes that nature changes species by selecting traits. Charles Darwin sometimes uses the phrase "survival of the fittest" to describe natural selection. Does evolution through natural selection produce "better" organisms in an absolve sense? Are we climbing Scala Naturae? Natural selection produce better organism than before. Fro an example the climate in Alabama has changed over time. Therefore animals that don't adapt to the climate died and a new species began. Darwin concluded that organisms with the best adaptation are most likely to survive and reproduce. Through inheritance the adaptation
