Ros and Janet live in different parts of the country and became friends through their love of the endangered breed.

Dr Gerrard is Director of Infectious Diseases at Queensland's Gold Coast University Hospital.

Kate has been studying who sets fires and why, in both Australia and the UK, for the past 21 years.

Vrasidas grew up in the Greek village of Olympia listening to his grandfather telling stories of ancient times.

Sleep is a basic human necessity, yet there's still very little known about it.

Peter has been involved with Greenpeace for more than 30 years, after being introduced to the power of protest at a very young age.

Professor David Christian is from Macquarie University and he's been teaching a dynamic version of the history of humanity for 25 years.

Kate is one of Australia's most awarded and popular writers. Her novels have won numerous awards in Australia and the UK, including the Orange Prize.

Geoff works in a detox centre attached to a major hospital, helping young people deal with addiction.

Peter Hoysted writes a column under the name of 'Jack the Insider' and tells the incredibly strange story of the Fine Cotton affair: where a group of conspirators hatched a plot to defraud bookmakers of millions of dollars.