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Human sex ratio - Wikipedia

en.wikipedia.org/wiki/Human_sex_ratio

In anthropology and demography, the human sex ratio is the ratio of males to females in a ... For example, the male to female ratio falls from 1.05 for the group aged 15 to 65 ... of "normal"...

Why Are More Baby Boys Born Than Girls? : Shots - Health News ...

www.npr.org/sections/health-shots/2015/03/30/396384911/why-are-more-baby-boys-born-than-girls

Mar 30, 2015 ... It's been a mystery why that ratio isn't 50:50, since that's what basic biology would predict. But scientists have noticed a tilted sex ratio at birth ...

The odds that you will give birth to a boy or girl depend on where in ...

www.pewresearch.org/fact-tank/2013/09/24/the-odds-that-you-will-give-birth-to-a-boy-or-girl-depend-on-where-in-the-world-you-live/

Sep 24, 2013 ... ... there have been about 105 boys born for every 100 girls worldwide — which creates a “sex ratio at birth” of 1.05 — the share of boy babies ...

Is It a Boy or a Girl? The Ratio of Boys to Girls at Conception Has ...

nautil.us/issue/27/dark-matter/this-gender-mystery-starts-nine-months-before-birth

Aug 20, 2015 ... The ratio of newborn boys to girls (called the secondary sex ratio) is a matter of ... influence on the likelihood of the resulting child being a girl.

Shiny happy people means more boys being born - CNBC.com

www.cnbc.com/2015/11/13/shiny-happy-people-means-more-boys-being-born.html

Nov 13, 2015 ... Positive or negative events can change the ratio of boys to girls being born. ... Hosting the 2010 World Cup caused a boom in male babies in ...

Is a pregnant woman's chance of giving birth to a boy 50 percent ...

www.scientificamerican.com/article/is-a-pregnant-womans-chan/

In most industrialized countries about 105 boys are born for every 100 girls, for a ratio of 1.05, known as the secondary sex ratio, or SSR; the primary sex ... even larger decreases in the number of male babies they welcomed into the world.

What are the odds of having another boy or girl? : Ingender.com

www.ingender.com/gender-info/odds-of-having-another-boy-or-girl.aspx

The ratio of 51% boys to 49% girls seen here is representative of overall US ... Having a second child doesn't seem to be influenced by the gender of the first ...

Why Are More Boy Babies Born Than Girls? | Population Education

www.populationeducation.org/content/why-are-more-boy-babies-born-girls

Apr 10, 2015 ... We've known for centuries that there are more boy babies born than girls. ... is 50- 50. It's what happens during pregnancy that changes this ratio.

Why women's bodies abort males during tough times | Science | AAAS

www.sciencemag.org/news/2014/12/why-women-s-bodies-abort-males-during-tough-times

Dec 11, 2014 ... Church records reveal when fewer boys are born, they survive better. ... as months later the ratio of boys to girls born can decline to well below the ... in years where the numbers of male and female babies were about equal.

Why Are More Boys Born than Girls? - Live Science

www.livescience.com/33491-male-female-sex-ratio.html

Sep 9, 2011 ... Worldwide, there are 107 boy babies born for every 100 girl babies. This skewed ratio is partly due to sex-selective abortion and "gendercide," ...