Our Changing World for Thursday 2 March 2006

9:46 PM.Medical students study complicated surgical procedures from text books, but now a new company is offering an alternative. Audio

9:35 PM.Dean Williams talks to Katherine Lister, who received a scholarship to study the place of didymo in the food chain. Audio

9:06 PM.The last episode in a three-part series about climate change explores the impacts of past climate changes on Antarctica's ice sheets. Audio