ci BioOne EFIVEOSELVAEFIDCH A Longitudinal Study of Digit Ratio (2D:4D) and Its Relationships with Adult Running Speed in Jamaicans Author(s): Robert Trivers , Renato Hopp and John Manning Source: Human Biology, 85(4):623-626. 2013. Published By: Wayne State University Press DOI: http://dx.doi.org/10.3378/027.085.0409 URL: http://www.bioone.org/doi/ful1/10.3378/027.085.0409 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne's Terms of Use, available at www.bioone.org/page/terms of use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors. nonprofit publishers. academic institutions. research libraries, and research (tinders in the common goal of maximizing access to critical research. EFTA00707033