Conversations ABC listen

Phil Roope with a true crime saga from 1930s Sydney involving a tiger shark, a severed arm, a Gladstone bag, smuggled cocaine, and a wronged man (CW: graphic descriptions)

Juliana Nkrumah survived ill treatment at the hands of her stepmother, growing up in Ghana, and got away with a warning from the Mugabe regime when she was teaching in Zimbabwe in the 1980s. And she is still the same girl who was too shy to look her husband in the eyes the first time they met

Why do we all feel "funny" about zoos? And should we? Dr Jenny Gray is the CEO of Zoos Victoria, and an ethicist fascinated by concepts like liberty and free will in the animal kingdom

The late Michael Mosley on his investigations into the complicated and fascinating world of our gut health and the human microbiome (R)

For a thousand years, Colditz Castle has sat on the edge of a cliff in eastern Germany. It has been a royal hunting lodge, a madhouse, and most famously an inescapable prisoner of war camp (R)

Thriller writer Louise Doughty on spycraft, trench coats and her Romany roots