Do Smaller Balls Make Better Dads?

A new study suggests there's a link between a man's testicle size and his fatherhood skills. But is this really a case of cause & effect? Laci takes a critical look at the science.

Read More:
Testicular volume is inversely correlated with nurturing-related brain activity in human fathers
http://www.pnas.org/content/early/201...

Testicle size may indicate men's childcare aptitude, suggests US study
http://www.theguardian.com/lifeandsty...

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