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The Joy of Why

How Did Altruism Evolve?

Feb 15, 2024
Stephanie Preston, a psychology professor and head of the Ecological Neuroscience Lab at the University of Michigan, discusses the fascinating evolution of altruism. She explores how empathy and decision-making have developed across species, challenging the notion of selfish survival. The podcast highlights the interplay between hormones and brain activity in caregiving, showcasing how heroic acts occur even in crisis. It also examines the societal impact of in-group biases on empathy and emphasizes the importance of storytelling in motivating altruistic actions, particularly for climate engagement.
34:22

Podcast summary created with Snipd AI

Quick takeaways

  • Altruism emerges from evolutionary adaptations promoting caregiving behaviors that enhance survival and reproductive success among species sharing genetic ties.
  • Cultural factors significantly shape altruistic actions by fostering personal connections, emphasizing the role of narratives in encouraging empathy and community support.

Deep dives

Defining Altruism in Scientific Terms

Altruism is defined as the act of providing aid to another person at a current cost to oneself, emphasizing that sacrifice often comes with long-term evolutionary benefits. This concept differentiates altruism from related notions like selflessness, empathy, and morality, which, while connected, each signify distinct actions and emotions. Empathy involves sharing in another's feelings, whether consciously or unconsciously, often motivating an altruistic response to alleviate distress. The altruistic urge thus reflects an evolved behavior that promotes caregiving in situations akin to caring for vulnerable offspring, underlining its adaptive value for survival and reproductive success.

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