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How are the genus and species parts of a scientific name written?
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taxonomy
Animals and other organisms are classified within a succession of nested groups that ranges from the general to the particular.
In biology, scientific names follow a standardized system known as binomial nomenclature, which was popularized by Carolus Linnaeus. Under this system, the scientific name of an organism consists of two parts: the genus and the species.12
These names are written according to specific formatting rules:
- Capitalization: The genus name is always capitalized, while the species name is not.12
- Italicization: Both the genus and species names are italicized to indicate their formal scientific status.2
For example, the scientific name for the common horse is Equus caballus, where Equus is the genus and caballus is the species. This precise, universal naming convention allows scientists worldwide to communicate clearly about specific organisms, avoiding the ambiguity often associated with common names.12