Natural selection, based on Darwin's theories, states that organisms with characteristics that benefit survival survive while the weaker, less adapted individuals are weeded out.
Languages also evolve over time, which is shown by the many languages around the world, all the dialects within each language, and the difference in language from older texts.
Do languages evolve the same way as species evolve? Do languages or parts of languages change based on how well they suit those who speak it? What exactly drives linguistic evolution?