While im not trying to turn this into a debate on wether or not the females breed I will address it with my opinion..I think they simply need a little more age and possibly weight than we are used to. There are a few other theorys also based on cooler temps. After talking to several people about them I feel a little better. And to answer the question on WHY a female?....Well because I already have a tiger (Enchi x desert) male. Someone will figure out the females and then the desert project will be hotter than it already is...Thanks to everyone for the comments.