In this episode, we explore five strange fossilized footprints found by Mary Leakey at the site of Laetoli in... more

In this episode, we talk with Evan Hadingham, senior science editor for the PBS program NOVA. His new book, Discovering... more

2021 was a big year in science! Fossil discoveries introduced new relatives to our family tree, new findings added fascinating... more

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... more