> Actually, "how" is "why". In a scientific context, "how" and "why" are generally regarded as separate questions. Consider the classic case of peppered moth e

> Actually, "how" is "why". In a scientific context, "how" and "why" are generally regarded as separate questions. Consider the classic case of peppered moth evolution: the "how" is answered by natural selection -- through random genetic variations the moths changed color over time to match their changing environment. The "why" is answered by noting that the camouflaged moths escaped predation by moth-eating species.