Zoology is the study of animal kingdom which includes the anatomy, physiology, evolution, characteristic, and classification of all living and extinct animals.
Here are the different branches of zoology and their definitions:
Anthrozoology is a study of interaction between humans and other animals. This sub-discipline of zoology overlaps with anthropology, veterinary medicine, ethnology and zoology.
Arachnology is a branch of zoology that deals with the study of spiders and related species known as arachnids (such as scorpions, harvestmen, etc).
Archaeozoology is the study of dead animals (faunal remains) that includes their bones, shells and other body parts. It is also known as zooarchaeology.
Bionics is the study of mechanical systems that function like living organisms or parts of living organisms. It is the concept of applying biological methods and systems found in nature to the study/design of engineering systems and modern technology.
Cetology is a branch of zoology that deals with the study of marine mammals that include whales, dolphins, porpoise, etc.
The branch of zoology that studies the prenatal development of gametes (also known as sex cells), fertilization, and development of embryos and fetuses.
Entomology is the study of insects. The following is the list of sub-branches of Entomology that specializes in different types of insects.
Coleopterology is the Entomology sub-branch that concerns with the study of beetles.
Dipterology is the sub-discipline of Entomology that studies all types of flies.
Hemipterology (True Bugs)
Hemipterology is the sub-division of Entomology that studies true bugs or hemiptera.
Isopterology is the study of termites.
Lepidopterology is a branch of Entomology that covers the study of butterflies and moths.
Melittology is the study of bees. It is also known as Apiology.
Myrmecology is a sub-discipline of Entomology which focuses on the study of ants.
Orthopterology is a sub-discipline of Entomology which handles the study of grasshoppers, crickets, etc.
Trichopterology (Caddis Flies)
Trichopterology is a sub-branch of Entomology focusing on the study of caddis flies.
Vespology is a sub-discipline of Entomology which specializes in the study of wasps.
Ornithology is a branch of zoology that deals with the study of birds. Check out the most colorful birds in the world.
Palaeozoology is a branch of zoology that deals with the study of fossil animals to identify multi-cellular animals from geological perspective to establish prehistoric environments and their ecosystems.
Pathology is the study of bodily fluids in laboratory such as blood, urine or tissues to diagnose a disease. It further narrows down to plant pathology (for plants) and veterinary pathology (for animals).
Primatology is a study of living and extinct primates (monkeys, apes, and prosimians).
Protozoology is a branch of zoology that deals with the study of Protozoa (which are unicellular organisms such as amoeba, etc.).
Taxonomy is a study that defines groups of biological organisms on the basis of shared characteristics and giving names to those groups. Check out the levels of biological organization in detail.
Zoogeography is the scientific study of geographical distribution of animal species (both historic and contemporary) in the world.
Zoography is study of animals and their habitats (also known as descriptive zoology).
Zoometry is a sub-division of zoology that deals with measurements (length or size) of animal parts.
Human Anatomy is the study of the structure of humans and their various parts whereas Zootomy specifically refers to animal anatomy.