Although the DNA in sperm determines sex, it seems that in the never ending battle of the sexes mothers can favour the development of one sex of infant rather than another, a faculty that nature uses to fine tune the sex ratio in Stone Age days to suit times of feast and famine, says the team from the Universities of Exeter and Oxford.
Although the DNA in sperm determines sex, it seems that in the never ending battle of the sexes mothers can favour the development of one sex of infant rather than another, a faculty that nature uses to fine tune the sex ratio in Stone Age days to suit times of feast and famine, says the team from the Universities of Exeter and Oxford.
Although the DNA in sperm determines sex, it seems that in the never ending battle of the sexes mothers can favour the development of one sex of infant rather than another, a faculty that nature uses to fine tune the sex ratio in Stone Age days to suit times of feast and famine, says the team from the Universities of Exeter and Oxford.