Do we place too much faith in science at the expense of religion? 200 years after his birth, Charles Darwin's legacy continues to polarise scientists and clergy around the world. It was Darwin who demonstrated that all species of life have evolved over time from common ancestors - a process he called "natural selection". His work was denounced as "the work of the devil" when it was published 150 years ago. But have we come on much since then? A poll published last week suggested that more than half the British public believe that the theory of evolution can't explain the full complexity of life on Earth and that a "designer" must have lent a hand. So, on Darwin Day, are we guilty of overlooking religious beliefs and placing too much faith in science? And should alternative theories, such as creationism, ever be discussed in our schools? Graham Stewart takes your calls, texts and emails.