Our Changing World for Thursday 23 January 2014

9:06 PM.The Arthur's Pass Wildlife Trust's predator trapping is really helping the local whio, or blue duck, population. Read more Audio

9:20 PM.Experts in pest eradication talk about the science behind the idea of a predator-free New Zealand. Read more Audio

9:34 PM.Donated heart tissue is being used to delve into what used to be known as junk DNA to indicate genetic risk of cardiac disease. Read more Audio

9:06 PM.University of Otago anthropologist Lisa Matisoo-Smith discusses the first-ever survey of New Zealand's genetic diversity. Read more Audio