👉 Gastropods are a group of animals that have the unique ability to form shells. They are characterized by their long, thin bodies and large, multi-sided shells, which they use for protection and feeding purposes. In some cases, these gastropods also have a specialized mechanism called the ocelli (oculars), which allow them to filter out bacteria, viruses, and other harmful substances from their food. Gastrotrichia is the scientific name of the group of gastropod