Well, I was playing a 3 generation alien family where all of them are light green (the similar color to sims 2 aliens), one of them married a human and his two children were hybrids (Alien green skintone with human eyes). I also married the hybrids with humans and their children were blue...? I was wondering how hybrids genetics work if all his ancestors have green skin tone, and his mother is a human. Then why does they have blue alien skin tone? ¿Does anybody knows how hybrid genetics work?