Have you ever wondered why, when reading the newspaper for example, an organism's genus-species name is always in italics? For example, Homo Sapien, or Human. Homo is the genus name and Sapien is the species name. But why the italics?
The reason is, according to modern literary doctrine, that all text that is written in a different language than the main text must be in italics. Since the genus species name is Latin, it must be italicised.
If I wanted to include a French word, I would also have to write it in italics. For example, Bonjour!
Hopefully this will make reading these kinds of things a bit easier...they're not just 'special' and written in italics to look as such, they're just written in a different language than that of the main text.