• Jun 26, 2026 Digit Ratio A Pointer To Fertility Behavior And Health A Volume In The Rutgers Series In Human Evolution Edited By Robert Trivers e gain a deeper appreciation for the subtle yet impactful influence of the prenatal environment on our lives FAQs 1 How is digit ratio determined and is it reliable Digit ratio is calculated by dividing the length of the index finger by the length of the ring finger on the same hand While BY Mckenna Wolf