101 books match the query 'Behavior' and 11 start with d
Edited by Janet Mann
University of Chicago Press, 2017
John T. Manning
Rutgers University Press, 2002
It has been known for more than a century that men and women tend to differ in the relative lengths of their index (2D) and ring (4D) fingers, which upon casual observation seem fairly symmetrical. Men on average have fourth digits longer than their second digits, while women typically have the opposite. Digit ratios are unique in that they are fixed before birth, while other sexually dimorphic variables are fixed after puberty, and the same genes that control for finger length also control the development of the sex organs. The 2D:4D ratio is the only prenatal sexually dimorphic trait that measurably explains conditions linking testosterone, estrogen, and human development; the study of the ratio broadens our view of human ability, talent, behavior, disposition, health, and fertility. In this book, Manning presents evidence for how 2D:4D correlates with traits ranging from sperm counts, family size, musical genius, and sporting prowess, to autism, depression, homosexuality, heart attacks, and breast cancer, traits that are all linked with early exposure to sex hormones.
Robert Elsner
University of Chicago Press, 2015
Chris Pearson
University of Chicago Press, 2021
Raymond Coppinger and Lorna Coppinger
University of Chicago Press, 2002
Lee Alan Dugatkin
University of Chicago Press, 2024
Eleanor Spicer Rice, Alex Wild, and Rob Dunn
University of Chicago Press, 2017
Eleanor Spicer Rice, Alex Wild, and Rob Dunn
University of Chicago Press, 2017
Eleanor Spicer Rice, Alex Wild, and Rob Dunn
University of Chicago Press, 2017
Eleanor Spicer Rice, Alex Wild, and Rob Dunn
University of Chicago Press, 2017
Christopher M. Buddle and Eleanor Spicer Rice
University of Chicago Press, 2018