Evolutionary Theories

  • What is biological evolution? 
    (Changes that take place within the genetic and physical characteristics of a population over time.) 

  • What are ultimate causes in the context of behavior? 
    (Events and conditions that have slowly shaped the behavior of our species over time.) 

  • What are proximate causes in relation to behavior? 
    (Immediate environmental variables that affect behavior.) 

  • How does natural selection contribute to adaptation? 
    (Competition for food and other resources allows only the best-adapted phenotypes to survive over time.) 

  • What is the difference between genotype and phenotype? 
    (Genotype refers to genetic makeup, while phenotype refers to physical characteristics.) 

  • What is sociobiology? 
    (The systematic study of the biological basis of all social behavior, particularly the evolutionary roots of modern-day social actions, such as parenting and reproduction.) 

  • What physical traits do men typically find attractive in women, according to sociobiology? 
    (Low waist-to-hips ratio, physical health, signals of fertility, smooth skin, full lips, lustrous hair, and symmetrical face.) 

  • Why do men typically seek younger mates, and women seek older mates? 
    (Men look for younger mates to maximize the chances of healthy offspring, while women seek older mates as they are more likely to have resources and stability to support a family.) 

  • How do men and women differ in their responses to infidelity? 
    (Men are more concerned with sexual infidelity as it jeopardizes paternity certainty, while women are more concerned with emotional infidelity, which signals the diversion of attention to other women.) 

  • What is inclusive fitness in evolutionary theory? 
    (Natural selection favors organisms that maximize the replication of their genes, not only directly through reproduction but also by helping those with whom they share genes, like close relatives.) 

  • What does the evolutionary perspective on personality suggest about human behavior? 
    (Human behavior and personality traits have developed to enhance survival and reproductive success.) 

  • How does the concept of natural selection relate to personality traits? 
    (Personality traits that increased an individual's chances of survival or reproductive success were more likely to be passed down through generations.) 

  • Why are social traits like cooperation and empathy important in the evolutionary development of personality? 
    (These traits helped individuals work within groups, increasing their chances of survival and achieving common goals.) 

  • How does the evolutionary perspective explain the development of traits like aggression or dominance? 
    (Aggression and dominance could have been advantageous in securing resources, mates, and protection, contributing to survival and reproductive success.) 

  • What role do personality traits play in mate selection from an evolutionary perspective? 
    (Certain personality traits, such as dependability, intelligence, or attractiveness, can signal genetic quality or the ability to provide resources, influencing mate choice.) 

  • How does the theory of sexual selection relate to the evolutionary development of personality traits? 
    (Sexual selection suggests that traits which enhance an individual's attractiveness or competitiveness for mates, such as confidence or charisma, may be favored in the evolutionary process.) 

  • What is the role of personality traits in ensuring the survival of offspring? 
    (Traits like nurturing behavior, parental investment, and emotional stability contribute to successful child-rearing, ensuring offspring survival.) 

  • How does the evolutionary perspective explain the variation in personality traits across different environments? 
    (Different environments may favor the development of specific personality traits that increase survival or reproductive success in those particular conditions.) 

  • Why is there a focus on both "universal" and "individual" aspects of personality in evolutionary psychology? 
    (Evolutionary psychology examines universal traits that have evolved across the species, as well as individual differences that may have been adaptive in specific environments.) 

  • How does the concept of "inclusive fitness" influence our understanding of personality? 
    (Inclusive fitness suggests that behaviors and personality traits that help relatives share their genes, even at the cost of one's own reproduction, can still be favored by natural selection.)