Talk:Bolin/@comment-3123266-20110724041807/@comment-98.209.40.55-20110724184023

I can almost guarantee that one parent is a fire bender and the other is an earth bender. So I am pretty sure it is genetic. Really, the only thing at this time that passes down spiritually is the Avatar. For example Aang was genetically an airbender but spiritually the Avatar.