190 years ago Charles Darwin stepped ashore in Falmouth at the end of a five year voyage that would transform the way in which we all think about nature. But how does his work and that of his fellow evolutionary theorist, Alfred Russel Wallace stand up in a world of climate change and habitat destruction?

To find out, Tom Heap and Helen Czerski are joined by Sandra Knapp of the Natural History Museum, naturalist and broadcaster Mike Dilger and by Armand Marie Leroi, professor of evolutionary developmental biology at Imperial College, London.

Producer: Alasdair Cross

Assistant Producer: Toby Field

Rare Earth is produced in association with the Open University