Andrew Marr explores how Darwin's theory of evolution by natural selection has taken on a life of its own far beyond the world of science
3/3 How Darwin's ideas are helping mankind to save life on earth from extinction.
BBC © 2013 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.