Heart of a Dog

"Heart of a Dog" is a novella by Mikhail Bulgakov that explores themes of identity, morality, and societal change through the story of a stray dog transformed into a human-like creature by a scientist. The narrative examines the ethical implications of scientific experimentation and the nature of consciousness, revealing how external changes do not necessarily alter inner morality or social behavior. It uses satire and allegory to critique Soviet society and human nature, highlighting the complexities of nature versus nurture and the enduring impact of environmental influences on identity and behavior.