Binomial nomenclature is the system of naming organisms using two names — a genus name and a species name. This system was developed by Carl Linnaeus and is still used worldwide to give every species a unique, standardised name.

1. Two-Part Name:
• The first part is the genus name. It starts with a capital letter.
• The second part is the species name. It is written in small letters.
2. Italicization or Underlining:
• The full scientific name is italicized when typed (e.g., Homo sapiens).
• If handwritten, it is underlined separately (e.g., Homo sapiens).
3. Language:
• Names are usually in Latin or are Latinized forms, so they are universal across all languages.
4. Example:
• Homo sapiens — where Homo is the genus (for humans) and sapiens means wise.
5. Purpose:
• It avoids confusion that could arise from different common names in different languages and regions.
• It helps scientists accurately identify and classify organisms.