Thompson V. In addition, the effects of stochastic sex-biased births and deaths can play transient, yet powerful roles on partner availability—particularly in small populations [ 24 ]. Gannon W.
In an extensive study, carried out aroundof sex ratio at birth in the United States from over 62 years, statistical evidence suggested the following: . Retrieved 14 July Skip to main content. Further Content: You might find this interesting as well. Retrieved 6 July Second, we assess which sex ratio influences behaviour.
The New York Times. He reports that there is an excess of males at birth in almost all human populations, and the natural sex ratio at birth is usually between 1. Archived from the original on 23 July