Rather than opposing “cultural” with “evolutionary” or “biological” explanations, researchers have now developed a rich body of work showing how natural selection, acting on genes, has shaped our psychology in a manner that generates nongenetic evolutionary processes capable of producing complex cultural adaptations. Culture, and cultural

Yes, we are intelligent, as earth creatures go; nevertheless, we are not nearly smart enough to account for our immense ecological success. Moreover, while we humans are good at certain cognitive feats, we are not so good at others. Many of both our mental skills and deficiencies can be predicted by recognizing that our brains evolved and expanded