261 followers
48 followers
RT @AbudBakri: @AJA_Cortes What wild is that even female stress levels are associated with this, and we have no clear mechanism where an eg…
29,823 followers
@AJA_Cortes What wild is that even female stress levels are associated with this, and we have no clear mechanism where an egg can *choose* which sperm she lets in https://t.co/Om0CFm5fYy Higher female stress jobs = more daughters
1,421 followers
RT @GrahamCLDavey: Mother's occupation and sex ratio at birth https://t.co/afETYRMXaF Hadn't seen these applications of the Trivers-Willard…