Board Thread:General Discussion/@comment-11169242-20130907142333/@comment-675805-20140812173345

Osmosians never really existed in the first place, it was just Kevin Devin and Aggregor before the retcon.

I'd also like to point out the issue of the half-human siblings who were half two different species, you can't explain that by simply saying they were the offspring of a human and one alien.