Finger Length Linked To Social Behavior?

Hormones called androgens are considered important in the development of masculine characteristics like aggression and strength and some believe that prenatal androgens affect finger length during development in the womb. High levels of androgens, such as testosterone, increase the length of the fourth finger in comparison to the second finger. Some archaeologists and anthropologists are using finger ratios as an indicator of the levels of exposure to the hormone and recently compared this data with social behavior in primate groups.  read more

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