Our Changing World for Thursday 18 December 2014

9:55 PM.The National Whale Centre opens in Picton to focus on the natural and cultural history of cetaceans and to mark 50 years since the end of commercial whaling in New Zealand. Read more Audio

9:46 PM.Google's Loon project aims to deliver internet access to remote areas, but the balloons are also helping scientists to study changes in the stratosphere. Read more Audio

9:36 PM.A biologist is asking citizen scientists to help identify thousands of photos of introduced predators taken by remote cameras Read more Audio

9:34 PM.Two new studies report a decline in sperm quality in older males, and poor breeding success as a result of inbreeding in little spotted kiwi populations Read more Audio

9:20 PM.Drinking two sugar probes is a common test to measure the leakiness of the gut but research by Ivana Sequeira has improved it Read more Audio

9:06 PM.Wild robins are the perfect subjects for a study looking at how smart birds are, and whether being smart helps them raise more chicks Read more Audio