it is pretty much clear that it is because of temperature, yet what specific effects lower temp plays is still a matter of research, and i find this interesting wrt. various studies of epigenetics emerging in recent times:
" we hypothesize that, at least for some loci, the sex-specific epigenetic remodeling process might be influenced by the temperatures at which male and female gonads are exposed during the acquisition of a new imprinting. "
Why has it become acceptable to place ads in-between the text of an article (mobile at least)? I counted no less than 4 ads within the article. They almost always bug my browser out when they're loading while I'm reading through the article. Not to mention making the whole end-user experience terrible.
No. Newspapers would have article conintued on page # that would break up an article. The ads were not within the article/wall of texts themselves. Those ads also didn't break or hinder the the medium through which the text was displayed.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4142806/
" we hypothesize that, at least for some loci, the sex-specific epigenetic remodeling process might be influenced by the temperatures at which male and female gonads are exposed during the acquisition of a new imprinting. "