Where moral intuition comes from

This paper explores the origins of moral emotions within a metaethical framework. While emotivism argues that moral claims simply express internal emotions, the biological source of these emotions is sometimes discarded. I am writing an evolutionary explanation for these moral feelings. Using the example of incest, I argue that moral disgust is an inherited trait. Early humans who lacked this aversion produced deformed offspring, failing to pass on their genes. Conversely, individuals who naturally felt disgust repelled the behavior, survived, and passed down this emotional wiring. Therefore, what we call "morals" are actually inherited survival mechanisms.