Zoology education and research is not just an individual animal, but the whole fauna and their interrelationships, the relationship of animals to plants and inorganic environments, etc., are the subject of all conceivable discussions and research in zoology.
Due to its wide range, zoology is now generally divided into several branches, the main of which are taxonomy, histology, anatomy, physiology, practical anatomy, embryology, archeology, genetics and heredity, ecology, zoogeography and economic zoology. With the advancement of knowledge came the emergence of branches like Protozology, Entomology, Parasitology, Fisheries, Wildlife, Conservation Biology etc.
Ancient naturalists began the practice of zoology by observing animals in nature. Hippocrates (~ 480–360 BC) and Aristotle (~ 384–322 BC) attempted to organize scientific thought in their time, but it declined during the Roman period, and after Galen’s memorable contributions Not acquired. Kuveer (1812) established archeology as a science, and the doctrines of Lamarck, Mendel, and Darwin revolutionized scientific thought. Linnaeus (1757) introduced the proper use of binomial nomenclature for the first animal.
The practice of high level zoology in Bangladesh was started in 1939 under the Faculty of Agriculture, University of Dhaka, where the undergraduate (pass) course in zoology was introduced in the academic year 1948-49.