A naturalist is someone who studies or has a deep appreciation for nature, often focusing on the observation of plants, animals, and ecosystems. They may engage in field research, documenting species and their behaviors, and advocate for conservation efforts. Naturalists can also be involved in education, sharing their knowledge about the natural world with others. The term can also refer to someone who embraces a philosophy of naturalism, emphasizing the role of nature and the physical world in understanding reality.