This is going to sound strange, but please bear with me because it IS a real question.

What is the average erect penis size of a North American red fox? Pics would be great but I'm mostly looking for measurements at the moment. Length is the big question, but I'd also like to know width/girth and knot size if possible.

I've been asking around various discussion forums and Q&A sites looking for someone who might know or be prepared to find out, I've also been frantically googling for anatomical documents that may contain this information, I think it may help more to post a question every now and then between bursts of searching. If anyone has tips on web-searching for this kind of information, or a link to a relevant document so I could find out, I would be grateful.