Science On Top

Hosts: Ed Brown, Penny Dumsday and Shayne Joseph We had some audio problems and unfortunately this episode still has a crackle we were unable to remove. :( Topics covered: Cane Toads Break Evolution Rules, Damping Down Fear With Cortisol, Yuri's Night, Photos from Mercury, Geologists Aim For Mantle of the Earth, Most Ancient Fossils Aren't Life, Girls Fear Vaccines and Risk Cancer Our theme music, Step On It, kindly provided by The Upstanding Members.