I found this fascinating study that suggests chimerism is much more prevelent

[summer_in_TX]

7. My adaptive psychology prof at UT in the 1970s taught us about experiments

with crowding. When species became more crowded together, the number of individuals born expressing homosexuality increased.

I found that fascinating – and related it to honeybees. If the queen dies, the worker bees choose an egg she laid and begin feeding it royal jelly. Depending how many days old the egg was when they started feeding it royal jelly, the next queen hatches out from the egg that would have been a drone or a worker – and the level of mixed traits it has comes from how long it was laid before the new feeding pattern started.

Humans, and creatures of all kinds, seem remarkably gender fluid, at least at times.