Forum:KB:Hybrid Status?

I noticed that in the Hybrid section, both Sephi and Moggonite are not listed as species which can breed with humans, however, the existence of Bertroff and Gizman respectively suggest otherwise? Can anyone please offer an explanation as to why those two species are not listed as compatible with humans? --68.184.19.43 00:09, September 30, 2013 (UTC)