Quote Originally Posted by soy.lor.n View Post
I wonder why they use the spider as their dominant trait, if it's not been proved to be true dominant yet
The reason is because it's not been shown to have a super form. If one ever appears, it will be re-classified.

The really interesting debate has yet to come up, which is how you know which gene a particular co-dominant morph resides on. There very well could be a number of double-co-dominant supers that simply cannot exist because the different "morphs" are just mutated alleles of the same gene, and thus cannot appear homozygous in the same animal together.