Final answer:
Naturalism evolved from Realism, aiming to explore more controversial subjects and regarding humans as influenced by heredity and environment, a perspective rooted in both scientific theories of the time and the literary style of Emile Zola. Realism focuses on day-to-day life, typically avoiding provocative subjects.
Step-by-step explanation:
The relationship between naturalism and realism is that naturalism evolved from realism and sought to take it a step further. While both literary movements aim to depict life accurately, they have different approaches and emphases. Naturalism, which was influenced by both Emile Zola and Charles Darwin, presents a more intense version of realism by delving into the darker and more controversial aspects of life, including topics like prostitution, alcoholism, and domestic violence.
It is not just a literary style, but also a perspective that views human beings as controlled by hereditary and environmental factors, and it aims to understand human behavior through a scientific lens. In contrast, realism is concerned with representing everyday life and societal norms without idealization or romanticization.
It generally avoids topics that might offend the sensibilities of the reader, focusing on the middle-class experience and day-to-day activities instead.