Given that droids apparently cannot become Jedi, I wonder if every intelligent biological species is capable of producing beings that are Force-Sensitive?
Or are there some species characteristics that can make it 100% impossible for them ever to produce a Force-sensitive individual.
NOTE: Let's exclude - if they exist in EU - things like random new-species-creating mutations - e.g. the individual should be 100% the same species, able to interbreed.