Quick Fix
Italicize the genus and species names together (e.g., Canis familiaris). Capitalize the genus only. Never capitalize or italicize higher taxonomic ranks like family or order.
What’s a Scientific Name?
Biologists use these names to avoid confusion—imagine calling every dog a "dog" when there are hundreds of species. Each name has two parts: the genus (a broader group) and the species epithet (the specific descriptor). Both parts get italicized together, while higher ranks (like family or order) stay capitalized but plain. As of 2026, this system still rules biological taxonomy, thanks to standards set by the IUCN Red List and NCBI Taxonomy Database.
How do you write a scientific name correctly?
Here’s the step-by-step:
- Split the organism into its genus and species. The genus groups similar species (like Canis for dogs), while the species epithet pinpoints the exact one (like familiaris for domestic dogs).
- Capitalize the genus only. Canis stays capitalized, but familiaris doesn’t—even if it’s at the start of a sentence.
Italicize the full binomial name:
- In Microsoft Word: Highlight the name → hit Ctrl + I to italicize.
- In Google Docs: Highlight → Format → Text → Italic.
- In LaTeX: Use
\emph{Genus species}or\textit{Genus species}.
- Double-check spelling and formatting. Latin’s tricky—misspellings happen. Stick to rules from the ICZN/ICBN to stay accurate.
Can you give me some examples of scientific names?
| Common Name | Scientific Name | Notes |
|---|---|---|
| Domestic dog | Canis familiaris | Still valid in 2026; NCBI confirms |
| Domestic cat | Felis catus | Taxonomy databases prefer this spelling |
| Red maple tree | Acer rubrum | Correct per USDA Plants Database |
| Human | Homo sapiens | Species epithet sapiens is lowercase; subspecies Homo sapiens sapiens appears in formal papers |
| Lion | Panthera leo | Genus Panthera; species epithet leo matches IUCN standards |
What if my scientific name isn’t formatting right?
First, look for subspecies—sometimes they sneak in. If you see one, add it after the species (e.g., Canis lupus familiaris). Italicize all three parts. Next, check the species epithet’s gender. Some must match the genus (like Felis catus, not Felis cattus). Still not working? Pull up Catalogue of Life or GBIF—they’ll set you straight.
How can I avoid mistakes when writing scientific names?
Start by saving links to NCBI, Catalogue of Life, and IUCN Red List—you’ll need them often. Tools like Zotero or Mendeley with taxonomy plugins auto-format binomials in your documents. (Honestly, this is the best way to dodge typos.) Also, tweak your Word or Google Docs settings to flag unitalicized names using custom dictionaries. Finally, ditch outdated synonyms—some old names linger in non-taxonomic sources. Always verify current binomials via Plants of the World Online or ITIS.
