User blog comment:BunsenH/Ghazt Stats Phase 2, Report 3/@comment-30460778-20161109115824/@comment-24577221-20161109163033

I don't understand what you mean. I think you misunderstand what we were doing.

Our research shows that it doesn't matter what the monsters' level or happiness are, for breeding with them. We kept our monsters at level 4 and/or 100% happiness just to prove that.