can someone show me some pics of the difference between a female and a male yellow niger uromastyx please, and can you tell me can you keep 2 males together in the same environment
http://www.deerfernfarms.com/Uromastyx_Species.htm Doug Dix has some good information on his site, not sure if there's any sexing though.
Nigers (U geyri, also called Saharans) are one of the easiest uromastyx species to sex once they are old enough (8 to 9 inches). The males belly is colored (yellow or orange depending like his back) but the females belly is white or cream. Either sex may have some thin black banding but males tend to have more.