For most grown ups, a foreign language may seem unintelligible. But, human languages may be more similar than one might think. On this program, Tanmoy Bhattacharya discusses a common structure underlying word meaning.

Predicted 100 years ago by Albert Einstein and his general theory of relativity, gravitational waves have finally been detected. On this episode, Dr. Marco Cavaglia explained these waves and what they can tell us about the universe.

Narcissism and psychopathy are not generally well regarded personality traits, but how do we identify those personality types. On this program, Dr. Frieda Birnbaum discussed these aberrant personality types.

While we may be born with some innate food preferences, most of our eating habits are learned and vary dramatically across cultures. On this episode, Bee Wilson discusses how we learn to eat and whether we can change our approach to food.

The recents events guided to terrorism have renewed the debate on balancing individual privacy and public security. On this program, Michael Kearns discusses algorithms that could ensure privacy while maintaining public security.

Nutrition research may have problems. On this episode, we talk with Christie Aschwanden about what she found when she used some common tools utilized in nutrition research.

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.