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Finger-length Ratios, Sexual Orientation and Offspring Sex Ratios

โœ Scribed by WILLIAM H. JAMES


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
100 KB
Volume
212
Category
Article
ISSN
0022-5193

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๐Ÿ“œ SIMILAR VOLUMES


2nd to 4th Digit Ratio and Offspring Sex
โœ J.T. MANNING; S. MARTIN; R.L. TRIVERS; M. SOLER ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 88 KB

There is evidence that the ratio of the length of the 2nd and 4th digit (2D:4D) is negatively related to prenatal and adult concentrations of testosterone. It has also been reported that high levels of testosterone at conception in both fathers and mothers are associated with an increased sex ratio

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## Abstract The prenatal environment influences offspring traits in a variety of ways and in a wide range of taxa. For example, maternal allocation of steroids to the eggs influences offspring traits in birds, and in some mammals the intrauterine position influences morphological, behavioural, and