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 Contingencies of Reinforcement. Chapter 5: Operant behavior. Quote 13 May 31, 2018 Beyond Freedom and Dignity. Chapter 4: Punishment. Quote 8 October 14, 2021 Recent Issues. Chapter 3: The Initiating Self. Quote 1 November 30, 2018