Taxonomy

Taxonomy is the science of naming, defining, and classifying organisms. It organizes biological diversity into named groups based on shared characteristics and relationships.

Nomenclature: A system of rules for assigning names to entities in a particular field. Biological taxonomy uses formal nomenclature rules to make organism names stable and consistent.
Taxonomic description: A formal account of the traits that distinguish a taxon from related organisms. Descriptions state the diagnostic features used to recognize and distinguish taxa.
Aristotle: An ancient Greek philosopher whose studies included the classification of animals. His early animal groupings helped establish classification as a systematic inquiry.
Phenetic taxonomy: A classification approach that groups organisms by overall measured similarity, without requiring a particular evolutionary history. It prioritizes overall resemblance, unlike classifications focused on ancestry.
Biodiversity: The variety of life, including variation within species, between species, and among ecosystems. Taxonomic inventories provide the names and units used to measure biodiversity.
Binomial nomenclature: A naming system that gives each species a two-part name consisting of its genus and specific epithet. It supplies the standard two-part scientific name used for each species.
Phylogenetic systematics: A method of classification that groups organisms by shared ancestry and evolutionary relationships. It grounds modern classifications in hypotheses about common descent.
Carl Linnaeus: A Swedish naturalist who established a durable system of binomial naming and hierarchical classification. His work standardized the naming framework still used in biology.
Evolutionary taxonomy: A classification approach that considers both ancestry and the degree of evolutionary change. It may retain traditional groups that strict ancestry-based classification rejects.
Conservation biology: The scientific study of protecting biological diversity and preventing species loss. Conservation priorities depend on identifying species and distinguishing them from one another.

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