Branches of Biology
The study of biology is vast and multidimensional. They important branches of Biology are as follows:
🔬 1. Taxonomic Branches (Organism-based)
| Branch | Study Area |
| Mammalogy | Mammals |
| Ornithology | Birds |
| Herpetology | Reptiles & amphibians |
| Ichthyology | Fish |
| Entomology | Insects |
| Arachnology | Spiders, mites, scorpions |
| Myrmecology | Ants |
| Melittology (Apiology) | Bees |
| Phycology (Algology) | Algae |
| Mycology | Fungi |
| Microbiology | Microorganisms |
| Bacteriology | Bacteria |
| Virology | Viruses |
| Protozoology / Protistology | Protists |
| Helminthology | Worms |
| Malacology | Molluscs |
| Bryology | Mosses & liverworts |
| Pteridology | Ferns |
| Agrostology | Grasses |
🧬 2. Structural & Functional Branches
| Branch | Study Area |
| Anatomy | Internal structure |
| Morphology | External form |
| Physiology | Functions of organisms |
| Cytology | Cells |
| Histology | Tissues |
| Molecular Biology | DNA, RNA, protein synthesis |
| Karyology | Cell nucleus |
| Myology | Muscles |
| Osteology | Bones |
| Arthrology | Joints |
🌍 3. Ecological & Environmental Branches
| Branch | Study Area |
| Ecology | Organism–environment interaction |
| Autecology | Single species ecology |
| Synecology | Ecological communities |
| Bionomics | Organisms in environment |
| Limnology | Freshwater bodies |
| Aerobiology | Airborne organisms |
| Palynology | Pollen study |
🧪 4. Medical & Human Biology Branches
| Branch | Study Area |
| Cardiology | Heart |
| Neurology | Nervous system |
| Nephrology | Kidneys |
| Hepatology | Liver |
| Hematology | Blood |
| Oncology | Cancer |
| Dermatology | Skin |
| Ophthalmology | Eye |
| Otology | Ear |
| Gastroenterology | Digestive system |
| Gynaecology | Female reproductive system |
| Obstetrics | Pregnancy & childbirth |
| Endocrinology | Hormones |
| Immunology | Immune system |
| Epidemiology | Diseases & epidemics |
| Pathology | Disease study |
| Gerontology | Aging |
🌱 5. Agriculture & Applied Biology
| Branch | Study Area |
| Agriculture | Crop & livestock production |
| Agronomy | Crop production science |
| Agronomics | Agricultural economics |
| Horticulture | Garden crops |
| Pomology | Fruits |
| Nematology | Nematodes |
| Sericulture | Silk farming |
| Edaphology | Soil science |
| Biotechnology | Use of organisms for products |
| Bioinformatics | Biological data analysis |
🔗 6. Interdisciplinary & Modern Fields
| Branch | Study Area / Application |
| Biochemistry | Chemical processes in life |
| Biophysics | Physics in biology |
| Genomics | Study of genomes |
| Paleontology | Fossils & evolution |
| Ethology | Animal behavior |
| Cryobiology | Life in low temperature |
| Biomechatronics | Biology + mechanics + electronics |
| Synthetic Biology | Designing new biological systems |
📚 7. Important Miscellaneous “Ologies”
| Branch | Study Area |
| Dendrology | Trees |
| Chronobiology | Biological rhythms |
| Enzymology | Enzymes |
| Etiology | Causes of disease |
| Taxonomy | Classification |
| Zoology | Animals |
| Phytology | Plants. Its synonym to Botany. |
Last Modified: April 22, 2026
