The following is an article from The Annals of Imp...  ...elated to it. Both plasma testosterone levels and testes volume were independently inversely correlated wi...  ...paternal caregiving and was negatively related to testes volume.Menstrual Cycle Effects on Attitudes towar...

Ball shrinking in progress (Photo:...  ...y results showed that both testosterone level and testes size are inversely correlated with paternal paren...  ...e governs the size of the gonads - the larger the testes , the less likely the men would become involved fa...  ...ink men's balls? "We’re assumi...