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Why are scientific names used instead of common names for organisms?

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A diagram showing the hierarchy of animal classification in taxonomy, with colored boxes arranged from broadest to most specific: domain, kingdom, phylum, class, order, family, genus, and species. — taxonomy Animals and other organisms are classified within a succession of nested groups that ranges from the general to the particular.

Scientific names are used instead of common names because they provide a precise, consistent, and universal system for identifying organisms worldwide.1

Common names can be problematic because they often vary across different languages and regions, and a single common name may even refer to multiple, unrelated organisms. In contrast, the binomial nomenclature system—developed by Carolus Linnaeus—ensures that every described species has a unique, standardized name.12

Using scientific names offers several key advantages:
* Clarity and Universality: They allow scientists and researchers across the globe to communicate clearly about the exact same species.1
* Evolutionary Context: Because the system uses a genus and species structure, the name often conveys information about an organism’s evolutionary relationships to other species.1
* Stability: While research can lead to name changes, international rules and committees in fields like zoology and botany work to minimize confusion and arbitrate naming controversies, bringing stability to taxonomy.21