I played with genetics a bit, and have concluded, that there is no gene mixing for pets, you get Coat from parent A or Coat from Parent B, if it is any of the preset breeds with predetermined coats you can get those coats in a couple colors but they are otherwise the same as parent just sometimes different color if that coat has alternate colors. And as for manually painted 'designs' or 'coats' you can have that coat pass but it will always be identical to it's parent... Super disappointing... As much as I love this pack, id have to say the genetics for the pets is just, the most shallow. I wonder if it is bugged or something?