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Author

Adler Nt

Bio: Adler Nt is an academic researcher. The author has contributed to research in topics: Quail & Coturnix. The author has an hindex of 1, co-authored 1 publications receiving 277 citations.
Topics: Quail, Coturnix, Castration, Testosterone (patch)

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Book
01 Dec 1998
TL;DR: Geary presents a theoretical bridge linking parenting, mate choices, and competition, with children's development and sex differences in brain and cognition, in a lively and nuanced application of Darwin's insight to help explain the authors' heritage and their place in the natural world.
Abstract: Why do girls tend to earn better grades in school than boys? Why are men still far more likely than women to earn degrees in the fields of science, technology, engineering, and mathematics? And why are men on average more likely to be injured in accidents and fights than women? These and many other questions are the subject of both informal investigation in the media and formal investigation in academic and scientific circles. In his landmark book "Male, Female: The Evolution of Human Sex Differences", author David Geary provided the first comprehensive evolutionary model to explain human sex differences. Using the principles of sexual selection such as female choice and male-male competition, the author systematically reviewed and discussed the evolution of sex differences and their expression throughout the animal kingdom, as a means of not just describing but explaining the same process in Homo sapiens. Now, over ten years since the first edition, Geary has completed a massive update, expansion and theoretical revision of his classic text. New findings in brain and genetic research inform a wealth of new material, including a new chapter on sex differences in patterns of life history development; expanded coverage of genetic research (e.g. DNA finger printing to determine paternity as related to male-male competition in primates); fatherhood in humans; cross-cultural patterns of sex differences in choosing and competing for mates; and, genetic, hormonal, and socio-cultural influences on the expression of sex differences. Finally, through his motivation to control framework (introduction in the first edition and expanded in "The Origin of Mind", 2005), Geary presents a theoretical bridge linking parenting, mate choices, and competition, with children's development and sex differences in brain and cognition. The result is an even better book than the original - a lively and nuanced application of Darwin's insight to help explain our heritage and our place in the natural world.

1,156 citations

Book ChapterDOI
01 Jan 1983

377 citations

Journal ArticleDOI
TL;DR: The quail POM constitutes an exceptional model for the analysis of steroid-induced brain plasticity in a functionally relevant context and appears to be a key target for steroids in the activation of male copulatory behavior.

281 citations

Journal ArticleDOI
TL;DR: The persistence of song after castration contrasts with the abolition of song by castration in other birds, and this may be related to the natural history of zebra finches.
Abstract: Castration of adult male zebra finches (Poephila guttata, Estrildidae) reduces their singing rate and the tempo of song, but castrates continue to sing song identical in form to preoperative song. Injection or implantation of testosterone propionate (TP) but not of vehicle alone reverses the changes produced by castration. Castration or partial castration also reduces the frequency of courtship, copulation, and aggression. Androgen (TP) replacement reverses these changes, but control injections do not. The persistence of song after castration contrasts with the abolition of song by castration in other birds, and this may be related to the natural history of zebra finches.

269 citations

Journal ArticleDOI
TL;DR: It was shown that the song of the male pied flycatcher is dependent upon androgens, and the testosterone treatment prolonged territorial behaviour, and a higher percentage of nests without a feeding male during the nestling period was found in the experimental area.

256 citations