The activities of the Vertebrate Zoology Section in the Natural Sciences Department of the Museum of the Republic of Srpska are defined by the Law on Museum Activities and the Museum’s internal regulations and are carried out in accordance with available resources. The department’s primary tasks include collecting, preparing, preserving, scientifically processing, exhibiting, and publishing materials and data on the chordate fauna of the Republic of Srpska. Within its capacity, the department monitors the state of chordate fauna in the Republic of Srpska, including species distribution, ecological status, and endangerment levels with a particular focus on the documentation and inventory of terrestrial vertebrates. Moreover, the Natural Sciences Department collaborates with public media and related scientific institutions and provides services to interested individuals and the general public. The scope of work of the Vertebrate Zoology Section encompasses the entire chordate fauna (Chordata) which includes vertebrates (Vertebrata) - the most numerous subgroup - as well as tunicates (Tunicata or Urochordata) and lancelets (Cephalochordata). The department’s collections are  cataloged in the Zoological Collection and are divided into the following subcollections: Fish, Amphibians, and Reptiles; Birds and Mammals; and Anatomical Specimens. A portion of the chordate specimens is also part of the Adriatic Sea Subcollection, which, in addition to these specimens, contains samples of 84 species of marine invertebrates (Invertebrata). The department also manages a section of the Photo Documentation collection. The department currently holds a total of 1,430 registered items in the Zoological Collection, including specimens, exhibits, casts, and models.