March 13, 2009
John Manning is a professor at the University of Swansea and he wrote the book “The Finger Book”. Professor John Manning explains in his book how the ratio of the index finger and ring finger (= the ‘2D:4D digit ratio’ finger length) is related to the ‘Big five’ of life.
|FINGERS & EVOLUTION
The human thumb is known as a ‘marker’ for the evolution of human kind; however our relative long index finger – compared to the ring finger – is a likewise example. In the chimpanzee and gorilla, this hand feature is different: they always have longer ring fingers and a short index finger.
THE RING FINGER & SPORTS
Exceptional performances in sports are being linked to the amount of male hormones that people absorb before birth while they stay in the womb. The ‘digit ratio’ has frequently been used to predict performances in various sports leagues.
THE INDEX FINGER & SOCIAL BEHAVIOR
Interestingly, especially among children a short index finger may indicate a lack of empathic ability.
There is growing statistical evidence that our finger ratios are a reliable predictor of our receptiveness to diseases. However, in real life the findings have not yet shown to have a significant impact.
YOUR FINGERS & YOUR SEX-LIFE
Men with long ring fingers, consider themselves as attractive. Studies show that women in the general rule agree and confirm the judgements of these men. Surprisingly, a likewise result has been found in women.
READ FURTHER ABOUT MANNING’S FINDINGS:
September 29, 2008
‘Digit ratio’ in non-human primates:
The major focuss in Emma Nelson’s ”digit ratio’ research in primates is:
|“Using digit ratios (2D:4D) to investigate social systems in anthropoids; implications for the study of the evolution of hominin sociality.”.
Variation in non-human primate 2D:4D is currently unknown. One of the aims of this project is to map differences in mean 2D:4D within and between non-human primates species.