Basically the Title. How are our body’s so good at regulating how much males and females are born, if they aren’t aware of the Balance at all?
In: Biology
Your premise is not entirely correct.
The proportion of males to females in humans is slightly skewed. Approximately 51.9% male to 48.1% female.
Random chance says that we should be approximately 50/50 as sperm are 50/50 X vs Y, but real world statistics don’t line up this way.
Different countries have different skews, where some have more males while others have more females. A lot of this is just due to random chance, the rest is social factors.
Females have a longer life expectancy so females are disproportionately represented at greater than age 80.
Another big part of it is the preference for males in certain cultures. The push to have male children to continue the family line results in a lot of selective abortion, particularly in certain asian cultures.
It’s estimated that upwards of 130,000,000 women are ‘missing’ in our population because of it.
The 1 child policy in China alone, is estimated to have cost the lives of millions female embryos.
Latest Answers