I'm having a lot of trouble figuring out the sex of my four kittens. I know that there are two females and two males, because they look different, but I can't figure out which is which. Does anyone have a url for a site with a picture of a male kitten and a female kitten so that I can compare them? I'm going to be giving three of them away in a few weeks, and the future owners will want to know which is which. I know I could go to the vet, but I want to at least try and find out myself first.