Sun. 4/25: This hour centers around a chilling question: can you ever really know the people around you?

Even those most dear to you--your mother, your child, your loved one--can you ever really know what they are thinking, feeling, or experiencing? Or is it all just a leap of faith? In this episode of Radiolab, we talk to neuroscientists, primatologists, zookeepers, actors, and dog owners, who are all trying to get inside another's mind.