Our Changing World for Thursday 4 May 2006

9:46 PM.Louise Wallace explores technical advances available to women who wish to preserve their fertility following cancer treatments. Audio

9:35 PM.Dean Williams talks to Greg Lambert at AgResearh Grasslands in Palmerston North about agricultural nitrogen. Audio

9:20 PM.Jonathan Aitchison talks about radiolarians and the geological history of the Himalayas. Audio

9:06 PM.Dean Williams talks to geneticist Scott Baker about molecular techniques to study whale and dolphin population structures. Audio