"Men with smaller testes were more likely to take charge of children's bath-time, visits to the doctor, night-time comforting, and other parenting jobs than others who have larger testicles.
The same story was borne out by brain scans which showed that men with smaller gonads reacted more strongly to photographs of their own children than did men with larger ones."
Tuesday, September 10, 2013
Testicle size may indicate men's childcare aptitude
Testicle size may indicate men's childcare aptitude
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