As a young girl, Biruté Mary Galdikas dreamed of going to the forests of Southeast Asia to study the least-known... more

Scientists agree that dogs evolved from wolves, but exactly how and when that happened is hotly contested. In this episode,... more

Learn about the evolution of our extraordinary ability to cool ourselves down. Biological anthropologist Andrew Best discusses the past, present,... more

Producer and scientist Kevin McLean travels to an island off the coast of Panama where researchers have found an isolated... more

The widely-held idea known as the “obstetrical dilemma” is a hypothesis that explains why babies are so helpless, and why... more

Sleep is one of the defining traits of human life. It's also one of the most mysterious. Dr. Horacio de... more

What is it like to study an endangered species like chimpanzees, knowing they may go extinct within your lifetime? Leakey Foundation... more

Your life story is hidden in your teeth. The days, weeks, years, and stressful events of your life are recorded... more

Rebecca Wragg Sykes' new book Kindred: Neanderthal Life, Love, Art, and Death synthesizes more than a century of research on Neanderthals... more

If exercise is healthy, why do so many people avoid doing it? Scientist and author Dan Lieberman joins us to... more