Here's why:
* Scientific names are binomial: They consist of two parts: the genus and the species. This system helps scientists communicate clearly and avoid confusion.
* Distinguishing from common names: Underlining or italicizing helps to visually distinguish scientific names from common names. This makes it easier to identify which name is being used.
* Formal convention: This is a widely accepted convention in the scientific community.
Here are some examples:
* Underlined: _Homo sapiens_
* Italicized: *Homo sapiens*
It's important to note that while both methods are acceptable, consistency is key. Choose one method and use it throughout your work.