Just wanted to share a few photos of a opal donek male I picked up a couple weeks ago. I don't know if he performs yet, but have tracked down that he and possibly three others I have are from the son of Dr. Stone from Utah, who had done color breeding of Doneks some 30 years ago. I'm knew to...

Hi all, I was wondering today about the biological mechanism behind the fixing of recessive genetic traits in a population. I came to the conclusion that some degree of inbreeding is the only way that rare spontaneous recessive mutations could possibly be fixed in a race or breed. All the...