Recent Issues. Chapter 5: Genes and Behavior. Quote 4 Post author:B. F. Skinner Foundation Post published:December 28, 2018 Post category:Skinner's Quote of the Day “Because no other species has acquired operant control of the vocal musculature, it must have appeared very late, when human genetics had reached essentially its present state.” (p. 54) Subscribe to RSS feed here You Might Also Like Science and Human Behavior, Chapter 16: Thinking, Quote 7 September 20, 2016 Contingencies of Reinforcement. Chapter 1: The Role of the Environment. Quote 5 January 16, 2018 About Behaviorism, Chapter 11: The Self and Others, Quote 13 July 26, 2017