Billionaires have more grandchildren through their sons than through their daughters, because the status advantage is more reproductively valuable to the sons. Therefore, it would be adaptive for the mothers of their children to bear more sons than daughters. But surely that can't be; mothers can't control the sex of their children.
Oh but so it is: billionaires have 60% male children.
[more inside]
posted by grobstein
on Jan 17, 2009 -
69 comments
Mothers who
wait to have a baby are at risk of evolutionary extinction. "If you want to see your line persist, then it's probably optimum to start reproducing in your early to mid-20s". According to this 220 year statistical model
late-reproducing women [genetic lineage] declined as a proportion of the population from 11 percent to about 5 percent
posted by stbalbach
on May 27, 2002 -
8 comments
Thrown off the scent. A fascinating story about The Pill and its effect on women's mate choice, and the effect of these choices on evolution. T-shirts belonging to unknown men were given to women to smell. All they had to do was say which smelt best. Women on the pill chose exactly the opposite t-shirts to those that didn't - find me free will, personal taste and the nature / culture divide in that if you can... [found via
Plastic - and if you want to talk about
that, then
click here]
posted by barbelith
on Feb 27, 2001 -
27 comments