The study of the shells of animals of the Mollusca community is called [D] Malacology. Malacology is a specialized branch of zoology that focuses on the scientific study of mollusks, including their anatomy, physiology, behavior, ecology, evolution, and classification. It particularly emphasizes the examination and analysis of mollusk shells, encompassing their structure, composition, growth patterns, and functional adaptations. Malacologists investigate various aspects of mollusk shells, such as their role in protection, locomotion, camouflage, and buoyancy, as well as their significance in environmental monitoring, paleontology, and biogeography. Through field surveys, laboratory experiments, and museum collections, malacologists contribute to our understanding of mollusk diversity, distribution, and conservation, providing valuable insights into the ecological roles and environmental interactions of mollusks. Malacology plays a crucial role in biodiversity research, ecosystem management, and the preservation of marine and freshwater habitats inhabited by mollusks.