Our Changing World for Thursday 1 April 2010

9:46 PM.Graham Le Gros and Mali Camberis are studying hookworms in the hope of developing a vaccine as well as treatments for diseases Read more Audio

9:34 PM.The book Plants that Poison is a guide to New Zealand's poisonous plants, from green potatoes to castor beans Read more Audio

9:20 PM.University of Otago's Chris Sissons and Lisa Wong are using an artificial mouth to study dental plaque Read more Audio

9:06 PM.At night Rangatira Island is alive with seabirds, wetas, spiders, and war whooping scientists catching Chatham petrels Read more Audio