Are there always 2 parts to the scientific name?

yes in many countries there are and some even have more. some small places may only refer to people as their first name only like in the book The Hiding Place where in the secret underground organization they all referred to each other with the same last name to signal to others their background.

I'm sorry i thought you meant real names... well this is awkward. oh well yes they do have only 2 parts to the scientific name.