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This image explains how modern evolutionary theory interprets prosocial behavior—actions that benefit others.

Key idea: • Modern evolutionary theory proposes that natural selection operates at the level of genes, not necessarily at the level of the whole individual. • In this view, behaviors that increase the likelihood of a gene’s survival will be favored by evolution—even if they don’t benefit the individual directly.

How does this relate to helping others?

Helping others can increase the chances that your genes survive, especially if: 1. You help close relatives (they share many of your genes). 2. You help others who help you in return (reciprocal altruism). 3. You work cooperatively in groups, which improves survival for everyone involved. 4. You build a good reputation, which can bring future social or material benefits.

So even though helping others might seem selfless, it can still serve your genetic self-interest in the long run.

Let me know if you’d like a real-world example or a simpler summary!

over justification effect