Trivers–Willard Hypothesis

[stazz1]

This strongly suggests that in times of repose, women are pregnant with males, and in times of uncertainty and stress with females. Is this true in your experience?

Thinking of it like a forest, women are the trees that create further forest and more life. The tendency for the forest to wish to cover the landscape with greenery and trees is normal, and once the forest is flourishing the focus changes to romping and playing.

Tragically and ironically, the 1 child policy in China was likely quite destructive because it caused so much stress and anxiety, uncertainty, and therefore mammalian ladies were likely creating mainly females, which were discarded in favor of males -- seen as the more important choice in times of scarcity -- in clear cross-facing against the grain of nature as she appears to play it in such times, according to the suppositions and supports of the hypothesis.

[gargarplex]

I've also read a study that human couples with more symmetrical faces produce more daughters than sons.

[corporateslave5]

Quick fact for everyone:

Billionaires have more sons, which is somewhat proof of this for humans

[tsimionescu]

Even if that is true, given how easy it is for a billionaire to have an abortion if they don't want a daughter, and to make sure no one knows about it, I don't think it's proof of anything directly.

[moopling]

I'd be interested in a citation, first thought which springs to mind is sample size and size of the bias.

[JohnJamesRambo]

Men with higher testosterone have more sons, maybe billionaires have more testosterone.

[pasquinelli]

There aren't that many billionaires. How many more sons do they have, exactly?

[derekbreden]

Anecdotally, my parents had a son while under the financial support of both sets of my grandparents. Then 4 daughters while only supported by a single not quite middle class income. Then a 10 year gap and under the support of two middle class incomes had their second son.