Yeah. 

I'm sure it has a lot to do with what it is though, and the demand for it. 

The male market is much more of a niche, but at the same time there are plenty of people who do work with males and need content. 

There are a lot of factors to consider and methods to generate more interest. I think the quality demand of male oriented content is also a lot higher than the female market, which would have a lot to do with it too.

 It just seems rather strange to me, as on the other side of CG, in character artist forums like zbc, cgsociety, conceptart, polycount, etc, you usually see a lot more male characters than female, or at least it is much more balanced.