Originally posted by luckies4me
Jynelle, your Frodo does look like a doe. In hairless rats sometimes a doe can be mistaken as a male as their urethra is a lot more noticable then on a furred rat. You can also see a bulge down there, that looks like undecended testies. If it is indeed a male, his testicles would already have descended, as he looks well over the age, and the testicles are pretty evident as early as three weeks old. Sometimes they do not descend til later, but from the pics, SHE looks very much like a doe.
I saw him at the petstore before I bought him though, and his testicles weren't sucked into his abdomen, they were out, and even bigger than my rats'! However, since I had him, they haven't...popped out...LOL. But the penis looks too far from the anus to be a female to me.

He's not a double rex, he's a nude ...He only has whiskers on his face. One of his parents was standard, the other other nude or hairless (The breeder didn't know).