3 ms·
There's actually some evidence and theory to suggest that sex of human children is determined by their mother's stress level: http://www.economist.com/node/1013
by yawaramin 12y ago
There's actually some evidence and theory to suggest that sex of human children is determined by their mother's stress level: http://www.economist.com/node/10130882 http://www.economist.com/node/10130882
So it's not clear-cut even in our species!
- judk 12y agoTo be clear, in humans that's a 5-10% shift in probability, and no evidence to suggest that the effect is determined post-conception (an extraordinary conjecture) and not statistical miscarriage pressure.