Our Changing World for Thursday 5 May 2016

9:46 PM.Baby native fish are in the spotlight as freshwater biologists unravel the mysteries of where these tiny creatures go in the first weeks of their lives. Read more Video, Audio

9:20 PM.Tim Flannery discusses his latest book, Atmosphere of Hope, and why he is hopeful that we will tackle climate change. Read more Audio

9:16 PM.Len Fisher reveals how - and why - Galileo calculated the dimensions of the roof of Dante's Hell, and how this led to his discovery of the laws of mechanics that engineers use to this day. Read more

9:06 PM.Scientists at Te Papa Tongarewa are using some of New Zealand's endemic plants and DNA sequencing tools to track how genetic diversity changes during of the process of crop domestication. Read more Audio