Unhuman
Who dares wins.
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Testes size, testosterone production and reproductive behaviour in a natural mammalian mating system
(study used sheep to base as their subjects)We found a strong positive relationship between an individual’s testes size (as measured before their seasonal enlargement) and the levels of circulating T during their rut, suggesting that T requirements for spermatogenesis has a prominent influence on the production of this androgen
Testicular volume is inversely correlated with nurturing-related brain activity in human fathers
Our results suggest that the biology of human males reflects a trade-off between mating effort and parenting effort, as indexed by testicular size and nurturing-related brain function, respectively.
Use this to estimate the size of your nuts.
More reliable measurements can be attained through an orchidometer.
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