Bill welcomes Paul Steinberg, MD to the show. Join Bill and Paul as they discuss his book A Salamander's Tale. Part medical biography and part philosophical musing, A Salamander’s Tale looks at the evolution of the regenerative capabilities of cold-blooded vertebrates like the salamander and what we as humans have lost and gained in our warm-bloodedness. How do we as human beings regenerate? How do we redeem ourselves when our capacity for regeneration is limited? How did the prostate evolve, and how does prostate cancer develop?