PHILOSOPHICAL QUESTIONS AND BIOLOGICAL FINDINGS, PART I: HUMAN COOPERATIVITY, COMPETITION, AND AGGRESSION: with Marcia Pally, "Philosophical Questions and Biological Findings, Part I: Human Cooperativity, Competition, and Aggression"; and Marcia Pally, "Philosophical Questions and Biological Findings, Part II: Play, Art, Ritual, and Ritual Sacrifice.". Issue 4 (26th September 2020)