I purchased these two gerbils when they were only a few weeks passed weaning back in March. They have been living together since and I have seen at least two attempts by the buck to mate with the female. She has never conceived. Now I know sometimes females will hump each other and males will hump each other so now I question whether or not I have a male and female. They look like male and female to me, but I'm posting up their pics anyway. I've re-done their cage and gave them a better house (wooden house as opposed to a cardboard box, and moved them to pine bedding instead of wood pellets. Not sure if the changes will help any, but we shall see. If they are male and female and will not breed, then either the male or female is sterile.

Agouti Male - weighing in at 96g


Black Female - weighing in at 99g


The female is jet black on top but for some reason looks brown under flash. Is she just a really dark agouti, or is her underside actually brown? It kind of looks lighter in person, but she is still jet black on top. This is the first dark gerbil I've ever had so I don't know gerbil colors very well.