The Galapagos Islands represent one of the world’s pinnacles of natural diversity as well as scientific discovery. It is the place that inspired Charles Darwin’s theory of evolution by natural selection , and has since become one of the last unspoiled ecosystems on earth. We're listening back to a conversation with the author of a book traces the the journey of a team of scientists who spent a year in the Galapagos collecting specimens that bolstered Darwin's ideas.