A subspecies is a taxonomic category that ranks below species, used to classify groups of organisms that are distinct from each other but still belong to the same species. Subspecies often arise due to geographical separation, environmental differences, or variations in behavior and morphology. For example, the gray wolf has several subspecies, each adapted to different habitats. Subspecies are important for understanding biodiversity and evolution. They can exhibit unique traits, such as coloration or size, that help them survive in specific environments. Conservation efforts often focus on protecting subspecies, as their loss can impact the overall health of the ecosystem they inhabit.