This document discusses the key elements of subject matter and characterization in naturalistic fiction. It notes that naturalistic works typically deal with unpleasant experiences that reduce characters from lower social classes to degrading behavior as they struggle to survive. Though their lives seem dull, these characters sometimes exhibit passionate acts of violence and death. While characters are conditioned by their environment and heredity, naturalists aim to represent how controlling forces intermingle with individual worth, not dehumanizing their characters. The difference between naturalism and realism is that naturalistic characters have little free will and are at the mercy of external and internal forces, presented objectively, whereas realistic characters retain some degree of free choice over their situations.