Sexual dimorphism in digit length ratios has been reported for humans, a few other mammals, and two bird species. This dimorphism is thought to arise via an interaction between the prenatal exposure of the embryo to sex hormones and the Hox genes, which are highly conserved among vertebrates and con
Sexual dimorphism in digit-length ratios of laboratory mice
โ Scribed by Brown, Windy M. ;Finn, Christopher J. ;Breedlove, S. Marc
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 179 KB
- Volume
- 267
- Category
- Article
- ISSN
- 0003-276X
- DOI
- 10.1002/ar.10108
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Variation in intrauterine exposure to hormones associated with variation in the sex of litter mates has well-established and far-reaching effects on sexual development in some mammals. Research on this phenomenon in reptiles is scant, but suggests that lizards may follow the mammalian model whereas
## Abstract Prenatal sex ratio (through exposure to hormones from siblings in utero) can influence sexually dimorphic traits of many mammals; but research on viviparous reptiles has contrasting outcomes, which have yet to be resolved. The thermal environment experienced during gestation has a stron