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Message: <blockquote data-quote="Tortoise Tom" data-source="post: 156259" data-attributes="member: 27883">I was on a roach board years ago and we talked about the subject of in-breeding. One member is a known author and biologist. Orin McMonigle. He said it would take roughly 999 generations of in-breeding before seeing any congenital issues if you started with a single pair of adult insects. He estimated 99 generations for reptiles. This number is much lower for humans and other "higher" mammals.I have a colony of hissing roaches that I started with two females and a male in 1992. I've never added anything new and by this point, there have probably been over a million off spring. No problems of any kind. They are still going strong to this day.</blockquote>