Kathy Willis explores DNA fingerprinting and a new tree of life for plants.
BBC Radio 4
2/3 Grayson Perry, Tracey Emin and Brian Sewell join Gerald Scarfe to ask, 'But is it art?'.
1/5 Bettany Hughes' archaeology of philosophy. Who came up with the idea of an idea?
2/4 Paul Morley continues his portrait of the music industry and its iconic record labels.
BBC Radio 6 Music
Dennis Sewell of the Spectator analyses the newspapers.
Robin Aitken examines the relationship between the Conservative Party and the police.
1/4 Paul Morley and his guests consider how technological changes have influenced music.
Journalist Eamonn O'Neill examines his profession through the legacy of Watergate.
Ed Docx discovers that John Donne can be a poet for life.
James Naughtie hosts discussion about Scotland's future, from the Edinburgh Festival.