Biological collections, also known as scientific collections or natural history collections, are repositories of preserved biological specimens that are used for research, education, and conservation purposes. These collections can include specimens of plants, animals, fungi, and microorganisms, as well as DNA samples and other genetic materials. They are often organized and curated by museums, universities, botanical gardens, and other institutions, and are essential resources for studying biodiversity, evolution, ecology, and other aspects of the natural world. Researchers use biological collections to identify species, study their anatomy and genetics, document changes in populations over time, and investigate relationships between different organisms. These collections also play a crucial role in wildlife conservation efforts, as they provide a baseline reference for monitoring and managing endangered species and ecosystems.