Intriguing (/Ridiculous) Headline of the Week: "Testes Size Correlates With Men's Involvement in Toddler Care"

• Men with smaller testes than others are more likely to be involved in hands-on care of their toddlers, a new study conducted by anthropologists at Emory University finds. The Proceedings of the National Academy of Sciences (PNAS) published the results of the study Sept. 9.

Learn more (if you dare) here.