#401 The Serengeti Rules

This week we're exploring how life is regulated at very small scales -- down to the molecular level -- and how those rules and regulations also seem to apply when we zoom back out to look at environments and ecosystems across the planet. We spend the hour with author and Professor of Molecular Biology and Genetics at the University of Wisconsin Sean Carroll talking about his new book "The Serengeti Rules: The Quest to Discover How Life Works and Why It Matters".