Each week on Self Improvement you get to learn something new - this week's less is the amazing diversity of frog mating strategies. Your teacher is Dr Jodi Rowley, curator of Amphibian and Reptile Conservation Biology at the Australian Museum.
At the heart of every early colonial building in Sydney, there is a convict story. Perhaps the most famous is Hyde Park Barracks, but you might not know that just next door to the barracks, there was a hospital for the convicts, that has a surprisingly dark and brutal history. Take a listen to this week's lesson with is Dr Fiona Starr from Sydney Living Museums.