1. The “Sex Role” Concept: An Overview and Evaluation

   • Malin Ah-King
   • Ingrid Ahnesjö

   Synthesis Paper 19 March 2013 Pages: 461 - 470

   

2. Making Young from Old: How is Sex Designed to Help?

   • Paul W. Turke

   Synthesis Paper 11 May 2013 Pages: 471 - 479

3. The Comparative Method in Cross-Cultural and Cross-Species Research

   • Randy Thornhill
   • Corey L. Fincher

   Synthesis Paper 22 May 2013 Pages: 480 - 493

   

4. Within-Population Developmental and Morphological Plasticity is Mirrored in Between-Population Differences: Linking Plasticity and Diversity

   • Frank Johansson
   • Alex Richter-Boix

   Research Article 15 March 2013 Pages: 494 - 503

   

5. Complexity by Subtraction

   • Daniel W. McShea
   • Wim Hordijk

   Research Article 13 April 2013 Pages: 504 - 520

   

6. Immune and Stress Responses Covary with Melanin-Based Coloration in the Barn Swallow

   • Nicola Saino
   • Luca Canova
   • Anders Pape Møller

   Research Article 17 April 2013 Pages: 521 - 531

   

7. Developmental Processes, Evolvability, and Dental Diversification of New World Monkeys

   • Valeria Bernal
   • Paula N. Gonzalez
   • S. Ivan Perez

   Research Article 07 April 2013 Pages: 532 - 541

   

8. Expression and Evolution of Short Wavelength Sensitive Opsins in Colugos: A Nocturnal Lineage That Informs Debate on Primate Origins

   • Gillian L. Moritz
   • Norman T.-L. Lim
   • Nathaniel J. Dominy

   Research Article Open access 17 April 2013 Pages: 542 - 553

   

9. Obligate Brood Parasites Show More Functionally Effective Innate Immune Responses: An Eco-immunological Hypothesis

   • D. Caldwell Hahn
   • Scott G. Summers
   • Michael H. Kogut

   Research Article 16 April 2013 Pages: 554 - 561

   

10. An Intercontinental Analysis of Climate-Driven Body Size Clines in Reptiles: No Support for Patterns, No Signals of Processes

    • Daniel Pincheira-Donoso
    • Shai Meiri

    Research Article 01 May 2013 Pages: 562 - 578

    

11. Efficiency and Significance of Multiple Vocal Signals in Sibling Competition

    • Charlène A. Ruppli
    • Amélie N. Dreiss
    • Alexandre Roulin

    Research Article 24 April 2013 Pages: 579 - 588

    

12. Estimating the Dynamics of Sexual Selection in Changing Environments

    • Ulrika Candolin
    • Leon Vlieger

    Research Article 24 April 2013 Pages: 589 - 600

    

13. Latitudinal Variation in Starvation Resistance is Explained by Lipid Content in Natural Populations of Drosophila melanogaster

    • Julieta Goenaga
    • Juan José Fanara
    • Esteban Hasson

    Research Article 15 May 2013 Pages: 601 - 612

    

14. Maternal Care, Iteroparity and the Evolution of Social Behavior: A Critique of the Semelparity Hypothesis

    • Stephen T. Trumbo

    Research Article 15 May 2013 Pages: 613 - 626

    

15. Bone Histology Reveals a High Environmental and Metabolic Plasticity as a Successful Evolutionary Strategy in a Long-Lived Homeostatic Triassic Temnospondyl

    • S. Sanchez
    • R. R. Schoch

    Research Article Open access 22 May 2013 Pages: 627 - 647