Ph.D. in Zoology normally takes 3 -5 years of study after obtaining a master's degree. The curriculum requires intensive training in animal biology, ecology, evolutionary biology, and genetics, as well as considerable research. Students must write a dissertation that brings new knowledge to the field, which frequently includes laboratory research, field surveys, or data analysis. During this time, candidates may also teach undergraduate classes, attend seminars, and publish research findings in academic journals. Graduates are equipped for professions in academics, wildlife conservation, environmental consultancy, and a variety of positions in governmental and non-governmental organizations concerned with animal health and biodiversity.