Most pairs ignore gender; a few special rules require specific sexes and change the child with direction.
Normal pairs
Example: Penking + Bushi → Sibelyx. Swapping parent order keeps the species; gender usually does not matter.
Gender dual example
Female Katress + male Wixen → Katress Ignis; male Katress + female Wixen → Wixen Noct. The calculator errors when genders fail a rule instead of inventing a species.
How to use the tool
Set parent A/B sexes before calculating. For all parents of a form, use reverse search and watch gender markers on results.
Next steps
Katress and Wixen breed pages summarize roles and links; the rules hub covers the full boundary story.