This episode is with Michael Levin and William RatCliff. Mike is a Professor in the Biology department at Tufts University. He is a pioneer in the study of bioelectricity, regeneration, and morphogenesis. Will is a Professor in the School of Biological Science at Georgia Tech. He is a leading expert in the study of how single-celled organisms evolved into complex multicellular life forms. Here, we talk about how cells cooperate, evolve, and build the diversity of life we see today. Specifically, we discuss about evolution of multicellularity, the role of bioelectricity in evolution, and the emergence of regeneration.