Evolutionary psychology attempts to explain human behavior through evolutionary adaptations. It links behaviors to biological functions and genetics. Key ideas include natural selection favoring traits suited to the environment and adaptations developing over generations. An example is how early humans' stress response helped survive encounters with predators by focusing on survival. The pair-bonding hypothesis proposes that humans formed long-term romantic bonds to rear young together successfully, promoting behaviors like attachment that increased reproductive success. However, critiques note evolutionary theories may underestimate culture's influence and rely on hypothetical assumptions about ancient humans' behaviors.