Sex changes

For some, it is a puzzle that there are the events of 'homosexuality' and like oddities. Looking intelligently, one can find this

occurence is due to biological sensitivity. Genetics material is sensitive to environment and changes and will adapt accordingly. What may have been a male combination may change chemistry to female or something other than what it was or vise versa.

Decades past, and centuries past, in cool or cold climates it is recorded that the male is more often produced. This for one example is found in Europe and Siberia which has had quite cool climates. This holds with biological organisms. When the climate substantially warms up then with many organisms there is a tendency for the female to be produced more frequently. The female population increases. 

It is also observed during the interphase that there are more occurences of gender mix other than the two prominent ones. There may arise biological asexuality, transgender, hemaphrodites, homosexual, bisexual and other combinations during the interphase. This is well noted among organisms, including mammals. This nature does have some correlation with survival with challenging and changing climate conditions.