Hemera/Thinkstock(BOSTON) — All people are supposed to be created equal but in truth, males have the slight edge over females when it comes to being born.
A Proceedings of the National Academy of Sciences report found that there are more boys than girls being born in the U.S. upon examination of “the sex ratios of fetuses at different gestational ages…and census records of fetal deaths and live births.”
Scientists from Harvard and Oxford Universities, who authored the study, say while the human birth ratio is equal during conception, more male embryos die initially while over the next 10-to-15 weeks, female embryos are in greater jeopardy of something going wrong.
Later in pregnancy, male miscarriages outnumbered those of females, particularly during weeks 28 to 35. However, more girls still died in the womb than boys.
The researchers say their findings are the opposite of earlier studies that claimed more males are conceived than their counterpart but that more males die during pregnancy.
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