Our Changing World for Thursday 2 June 2016

9:46 PM.The kaka, or forest parrot, has had its IQ tested for the first time - and in some experiments young naive birds were better problem solvers than older birds that were stuck in their ways. Read more Video, Audio

9:34 PM.The ocean is becoming more acidic, and this change is most pronounced in coastal seas. Marine scientists have received $4.9 million to work out what is going on and how this affects marine life along… Read more Audio

9:20 PM.Virus hunter and botanist Paul Guy has been called in to help threatened native cress plants that are being infected by three different brassica viruses. Read more Audio

9:06 PM.NIWA marine ecologist Kim Goetz is setting up acoustic monitoring stations in Cook Strait to eavesdrop on whales and dolphins as they migrate through New Zealand waters. Read more Audio