Conversations ABC listen

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

When Kerstin Pilz discovered that her charming husband Gianni had been cheating on her while he was dying, she had to decide what to do next

Journalist Nick Bryant has had three years away from his beloved America, completely reassessing his ideas about the superpower and the wild, great American experiment