How do con artists ply their trade? And, who is a potential victim? On this episode, Maria Konnikova discussed the confidence game.

The interaction between humans and animals has varied dramatically throughout human history. On this episode, Brian Fagan discussed how animals have shaped our history and how our conception of them has changed over time.

The international negotiations for addressing climate change has been fraught with rancor but the COP21 meeting in Paris last month marks a turning point. On this program, David Victor discusses the Paris Agreement.

The history of ancient human civilization is mysterious almost by definition. On this episode, Graham Hancock presents an alternative story of the past.

Are we prepared to cope with food shortages? On this episode, Margaret Nelson discusses how social factors plays a role determining the survivability of societies.

What does mythology tell us about the scientific environment of those who created them? On this episode, Matt Kaplan discussed the science of the magical.

Scientists can now make precise changes to the DNA of humans and animals thanks to recent advances in gene editing technology. On this episode, Dr. Hank Greely discussed the medical promises and perils of this technology.

What are the effects of climate change on forests? On this episode, William Anderegg discusses forest carbon dynamics.

Throughout history, physicians have made use of the placebo effect. On this episode, Professor John Kelley discussed the mechanisms of the placebo effect and its role in medicine.

Traumatic brain injury can result in the emergence of severe psychiatric symptoms. On this episode, Dr. Sandeep Vaishnavi discussed the diagnosis and treatment of psychiatic problems associated with traumatic brain injury.