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你知道世界上最优秀的鸽舍是如何繁殖鸽子的吗? 在那里,同系繁殖是被允许的,但是仅仅是儿子与母亲, 从来没有出现过姐妹×兄弟。你想了解它的详情吗?
Do you know how the best pigeon loft in the world is breeding pigeons? There, homosexual reproduction is allowed, but only sons and mothers, there have never been sisters × brothers. Do you want to know more about it?