Quote Originally Posted by pfan151 View Post
The only use for them is to possibly "plug up" the female to block other males sperm from fertilizing the females. I am not sure if that is actually a confirmed reason for them, but I have heard it theorized in the past. If you look sometimes after breeding you can see the end of the males plug still stuck in the female.
Right, which is why I don't like messing with them...

I honestly have not played with them enough to check to see if there is any viable sperm in a plug, but I'd rather play my cards close to the vest...

I'd like to know if they do have any viable sperm in them as well, but that seems to be another type of experiment that some people cannot participate in