Since zoology is such a broad field, many students who are studying zoology or declaring a zoology major choose to specialize in one of the branches of zoology. Zoology branches include everything from the study and form of animals, the interrelationships of animals from the past and present, the study of earth and life, the study of extinct animals and fossils, and the development of the egg after fertilization in a certain species. When you are exploring the subject of zoology and considering majoring in this field, take the time to learn about different zoology branches to see what area is of most interest to you.

Remember that zoologists and researchers must study their subjects for several years before they can find gainful employment. In fact, you will need at least a doctoral degree in order to apply for research positions or teaching positions in this field. Choosing zoology branches that you are passionate about or very interested in learning about can help you stay motivated for this long educational track, and also help you decide what to specialize in.

General Zoology Branches

Some of the general branches of zoology include:

  • Morphology - the study of form and structure of animals
  • Cytology - the study of the internal structure of animals
  • Histology - the study of the structure and function of the tissues
  • Physiology - the study of the different functions of various organs in the body
  • Embryology - the study of the development of the egg after fertilization
  • Genetics - the study of heredity and variations
  • Ecology - the study of the relationship between different animals, organisms and the surrounding environment
  • Geology - the study of earth and life as recorded by fossils in rocks

Animal-Specific Zoology Branches

Since zoology encompasses the study of animals, fish, insects, crustaceans and other organisms, zoology branches can also be broken down by a specific species or type of animal. Some of the animal-specific branches of zoology include:

  • Protozoology - the study of unicellular organisms
  • Parazoology - the study of sponges
  • Cnidology - the study of coelenterates
  • Helminthology - the study of parasitic worms
  • Nematology - the study of nematodes
  • Entomology - the study of insects
  • Carcinology - the study of crustaceans
  • Myrmecology - the study of ants
  • Lepidopterology - the study of butterflies and moths
  • Conchology - the study of molluscs
  • Torpedology - the study of skates and rays
  • Batracology - the study of frogs

Other Zoology Branches

Some branches of zoology are centered around the study of certain organs and diseases. Others fall under the category of "applied branches", and include branches such as eugenics, poultry, apiculture and aquaculture.

Some of the other zoology branches that you may have an interest in when studying zoology or attending a zoology school, include:

  • Phenology - the study of animals as they are affected by seasonal changes
  • Ethology - the study of animal behavior
  • Phrenology - the study of mental faculties of the brain
  • Epidemiology - the study of the transmission of diseases
  • Torentology - the study of disease of embryos
  • Immunology - the study of immunity to diseases
  • Pharmacology - the study of the effects of medicines and organisms
  • Exobiology - the study of existence of life in outer space
  • Cryobiology - the study of the effects of low temperatures on certain organisms and species