Our Changing World for Thursday 16 February 2012

9:46 PM.A forest buried in volcanic ash tells a story about Auckland's volcanic history Read more Audio

9:34 PM.In part 2 of Whale Rescue, the trainee marine mammal medics take to the water with an inflatable whale Read more Audio

9:20 PM.A chemist and a botanist investigate whether the redness of horopito leaves is related to their hotness Read more Audio

9:06 PM.Marine biologists discover supersized amphipods thriving at seven kilometres deep in the Kermadec Trench Read more Audio