The term used for a group of researchers studying a specific animal or environment is a "research team" or "research group." These researchers typically collaborate to gather data, conduct experiments, and analyze results related to their specific area of study. Their focus could range from studying wildlife behavior in a particular habitat to evaluating biodiversity within an ecosystem. By combining their skills and expertise, they can address complex questions in biology, ecology, or conservation, ultimately contributing to our understanding of species and their interactions with the environment.