Acarology: Study of mites and ticks.
Agroecology: Study of sustainable agriculture and its ecological impact.
Algology: Study of algae.
Allergology: Study of allergies and allergic reactions.
Anatomy: Study of the structure of organisms and their parts.
Angiology: Study of blood vessels and lymphatic system.
Aquatic Biology: Study of aquatic ecosystems and their inhabitants.
Astrobiology: Study of the potential for life in outer space.
Behavioral Ecology: Study of animal behavior and its ecological significance.
Bioacoustics: Study of the sounds produced by living organisms and their communication.
Biochemistry: Investigation of the chemical processes within living organisms.
Bioethics: Exploration of ethical issues related to biology, genetics, and medical research.
Bioinformatics: Application of computational techniques to biological data analysis and modeling.
Biogeography: Study of the distribution of species and ecosystems across geographic space.
Biogeophysics: Study of the interactions between living organisms and Earth's physical processes.
Biomathematics: Application of mathematical models to biological phenomena.
Biomechanics: Study of the mechanical aspects of living organisms.
Bioacoustics: Study of the sounds produced by living organisms and their communication.
Bionics: Application of biological principles to design and engineering.
Biomedical Engineering: Application of engineering principles to solve medical and healthcare problems.
Bioprocess Engineering: Application of engineering principles to biological processes.
Biopsychology: Study of the biological basis of behavior and mental processes.
Biosafety: Ensuring safe handling of biological materials and organisms.
Biotransformation: Study of the conversion of chemicals in living organisms.
Cancer Biology: Study of the biology of cancer cells, tumor growth, and metastasis.
Cardiology: Study of the heart and cardiovascular system.
Chiropterology: Study of bats and their behavior.
Chronobiology: Study of biological rhythms and their synchronization with natural cycles.
Conservation Biology: Study of the preservation and restoration of biodiversity.
Conservation Genetics: Study of genetic diversity and conservation of endangered species.
Cybernetics: Study of systems, control, and communication in living organisms.
Cytogenetics: Study of the structure and function of chromosomes.
Cytology: Study of cells, their structure, function, and behavior.
Deep Ecology: Philosophical and ecological movement advocating for a deep connection between humans and nature.
Dendrochronology: Study of tree rings to understand environmental history.
Dendrology: Study of trees and woody plants.
Developmental Biology: Study of the process of growth and development.
Developmental Genetics: Study of the genetic mechanisms that control the development of organisms.
Drosophilology: Study of fruit flies.
Ecology: Study of interactions between organisms and their environment.
Ecophysiology: Study of the physiological adaptations of organisms to their environments.
Endocrinology: Study of hormones and their effects on organisms.
Environmental Biology: Study of the relationships between living organisms and their environment.
Epigenetics: Study of heritable changes in gene expression.
Ethnobiology: Study of the interactions between cultures and their local biological resources.
Ethology: Study of animal behavior.
Evo-Devo (Evolutionary Developmental Biology): Study of the genetic basis of evolutionary changes in development.
Evolutionary Biology: Study of the origin and changes in species over time.
Evolutionary Ecology: Study of how ecological interactions influence evolutionary processes.
Evolutionary Genetics: Study of the genetic changes that drive evolutionary processes.
Evolutionary Psychology: Study of how evolution influences human behavior and cognition.
Exobiology: Study of life in environments beyond Earth.
Extraterrestrial Biology: Study of life in environments beyond Earth.
Forest Ecology: Study of forest ecosystems and their dynamics.
Functional Morphology: Study of the relationship between an organism's structure and its function.
Genetics: Study of genes, heredity, and genetic variation.
Genomics: Study of the complete set of genes in an organism.
Geobiology: Study of interactions between the biosphere and Earth's geology.
Hematology: Study of blood and blood-forming tissues.
Helminthology: Study of parasitic worms.
Hepatology: Study of the liver and its diseases.
Histology: Study of the microscopic structure of tissues.
Histopathology: Study of changes in tissues caused by diseases.
Holistic Medicine: Approach to healthcare that considers the whole person and their environment.
Hormonal Biology: Study of hormonal systems and their effects on organisms.
Horticulture: Study of garden plants and cultivation techniques.
Hydrobiology: Study of aquatic organisms and their interactions.
Hydroponics: Study of growing plants without soil, using nutrient-rich water solutions.
Ichthyology: Study of fish, their biology, and conservation.
Immunology: Study of the immune system and its response to pathogens.
Immunogenetics: Study of the genetic basis of the immune response.
Industrial Microbiology: Application of microorganisms in industrial processes.
Limnology: Study of freshwater ecosystems.
Lepidopterology: Study of butterflies and moths.
Malacology: Study of mollusks.
Marine Biology: Study of marine organisms and ecosystems.
Mechanobiology: Study of how mechanical forces influence biological processes.
Microbial Ecology: Study of microorganisms and their interactions with their environment.
Microbiology: Study of microorganisms, including bacteria, viruses, and fungi.
Molecular Biology: Study of biological molecules and their interactions.
Molecular Ecology: Study of ecological processes at the molecular level.
Molecular Genetics: Study of the structure and function of genes at the molecular level.
Mycology: Study of fungi.
Neurobiology: Study of the nervous system, its structure, function, and disorders.
Neuroendocrinology: Study of the interaction between the nervous and endocrine systems.
Neuropsychology: Study of the relationship between the brain and behavior.
Opthalmology: Study of the eye and vision.
Ornamental Horticulture: Study of decorative plants and landscapes.
Ornithology: Study of birds.
Paleontology: Study of ancient life through fossils.
Palynology: Study of pollen and spores.
Parasitology: Study of parasites and their relationships with hosts.
Pathology: Study of diseases and their causes.
Pharmacology: Study of drugs and their effects on living organisms.
Phenomics: Study of an organism's observable traits and characteristics.
Phycology: Study of algae, including their taxonomy, physiology, and ecology.
Physiological Ecology: Study of how organisms' physiology is influenced by their environment.
Plant Biology (Botany): Study of plants.
Plant Pathology: Study of plant diseases and their causes.
Population Biology: Study of populations of organisms and their dynamics.
Primatology: Study of primates.
Proteomics: Study of the complete set of proteins produced by an organism.
Radiation Biology: Study of the effects of ionizing radiation on living organisms.
Radiobiology: Study of the effects of radiation on living organisms.
Reproductive Biology: Study of reproductive processes and strategies in organisms.
Soil Biology: Study of the interactions between living organisms and soil.
Sociobiology: Study of social behavior in animals, including humans.
Structural Biology: Study of the three-dimensional structures of biological molecules.
Symbiology: Study of symbiotic relationships between different organisms.
Synthetic Biology: Design and creation of new biological systems and organisms.
Systematics (Taxonomy): Study of classifying and naming organisms.
Theoretical Biology: Development of mathematical models and theoretical frameworks to understand biological processes.
Virology: Study of viruses and their interactions with host organisms.
Wildlife Biology: Study of wildlife and their habitats.
This comprehensive list represents the vast expanse of biological knowledge, from understanding the intricacies of cells and organisms to unraveling the mysteries of ecosystems and human health. Each specialized field contributes to our broader understanding of life on Earth and beyond.