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I found male to female but not naturally. Scientists were trying to learn what controls sexual development in eggs. By injecting some things and/or snipping out the genes that control the production of other things, they did get both genetic females to develop as males and genetic males to...

It is interesting. It says, "In general, spontaneous sex reversal has been described as the result of pathological conditions (eg. ovarian cyst or tumor, diseases adrenal glands) which case the left ovary to regress. Residual tissue in the right ovary proliferates in the absence of a functional...

This? Same paper, different method of linking it.. https://mysrf.org/pdf/pdf_poultry/p11.pdf

I did not get it. What is the title and author(s). And year published would be helpful.

In case what I posted before is science or medical or whatever we are now not supposed to talk about - I've been trying to understand what might happen and why (as this situation or as a hypothetical) - not trying to bash in any of my posts. Intersex in various species makes sense to me...

Maybe a picture is worth a thousand words

I agree it is good to question and test what we think we know. Fish (yes, certain fish) can change gender because they have precursor cells for both ovaries and testes. I don't think chickens do; partly because there are two ovaries or two testes (or possibly two organs that are between an...

I did a little digging into the biology of hen feathering (like the sebrights) in case it helped with this - if an egg was laid by this bird. Roosters with the genes for the hen feathering have rooster feathering when they don't have enough testosterone. Hens, though, have rooster feathering...