Our Changing World for Thursday 20 July 2006

9:46 PM.Louise Wallace asks Foot Traffic's Rob Dellamore for advice and treatment for her feet after a walk around the block. Audio

9:35 PM.Dean Williams talks to Vince Kerr about a long-term study of lobster populations in a partially protected marine park. Audio

9:20 PM.Veronika Meduna talks to Martin Siegert, an Antarctic researcher and professor of geosciences at the University of Edinburgh. Audio

9:06 PM.Dean Williams discusses survival techniques and antifreeze in Antarctic fish with Auckland University's Clive Evans. Audio