"Declining Sex Ratio in a First Nation Community" (chemical exposure decreasing the number of male births)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1281269/ …
-
-
IIRC, there was a theory that stress lowers the ratio by causing spontaneous miscarriage of lower fitness males. My wife is always stressed, and all of my sons are absolute beasts.
-
I remember something related.. in high competition environments females are more likely to breed, so women end up having more daughters
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.