A while back, I found a page that showed pictures and gave descriptions about various jungle-type breeds (I don't know exactly how to call them.) such as Savannahs, Bengals, Maus, etc. It also told the differences between the F numbers (F1, F2, etc). I can't find it now and I would really like to read through it as my husband has his dear heart set on having a Savannah companion eventually. :)