1. Three-dimensional barricading of a predatory trap reduces predation and enhances prey capture

   • Sean J. Blamires
   • Chueh Hou
   • I-Min Tso

   Original Paper 13 February 2013 Pages: 709 - 714

   

2. Risk vs. reward: how predators and prey respond to aging olfactory cues

   • Jenna P. Bytheway
   • Alexandra J. R. Carthey
   • Peter B. Banks

   Original Paper 03 February 2013 Pages: 715 - 725

   

3. Colony take-over and brood survival in temporary social parasites of the ant genus Formica

   • Anton Chernenko
   • Marta Vidal-Garcia
   • Liselotte Sundström

   Original Paper 05 February 2013 Pages: 727 - 735

   

4. The benefit of obligate versus facultative strategies in a shrimp–goby mutualism

   • Patrick J. Lyons

   Original Paper 03 February 2013 Pages: 737 - 745

   

5. Evolution of mating systems and sexual size dimorphism in North American cyprinids

   • M. Pyron
   • T. E. Pitcher
   • S. J. Jacquemin

   Original Paper 17 February 2013 Pages: 747 - 756

   

6. Communal nesting in an ‘asocial’ mammal: social thermoregulation among spatially dispersed kin

   • Cory T. Williams
   • Jamieson C. Gorrell
   • Stan Boutin

   Original Paper 13 February 2013 Pages: 757 - 763

   

7. Behavioral type–environment correlations in the field: a study of three-spined stickleback

   • Simon Pearish
   • Lauren Hostert
   • Alison M. Bell

   Original Paper 15 February 2013 Pages: 765 - 774

   

8. Brood-care experience, nursing performance, and neural development in the ant Pheidole dentata

   • Mario L. Muscedere
   • Anisa Djermoun
   • James F. A. Traniello

   Original Paper 17 February 2013 Pages: 775 - 784

   

9. Hunted hunters? Effect of group size on predation risk and growth in the Australian subsocial crab spider Diaea ergandros

   • Bianca Unglaub
   • Jasmin Ruch
   • Jutta M. Schneider

   Original Paper 08 March 2013 Pages: 785 - 794

   

10. Gray tree frogs, Hyla versicolor, give lower-frequency aggressive calls in more escalated contests

    • Michael S. Reichert
    • H. Carl Gerhardt

    Original Paper 22 February 2013 Pages: 795 - 804

    

11. Multi-year lactation and its consequences in Bornean orangutans (Pongo pygmaeus wurmbii)

    • Maria A. van Noordwijk
    • Erik P. Willems
    • Carel P. van Schaik

    Original Paper 23 February 2013 Pages: 805 - 814

    

12. Habitat selection increases the isolating effect of habitat fragmentation on the gopher tortoise

    • Earl D. McCoy
    • Katherine A. Basiotis
    • Henry R. Mushinsky

    Original Paper 23 February 2013 Pages: 815 - 821

13. Is there a different response to winds during migration between soaring and flapping raptors? An example with the Montagu’s harrier and the lesser kestrel

    • Ruben Limiñana
    • Marta Romero
    • Vicente Urios

    Original Paper 06 March 2013 Pages: 823 - 835

    

14. Dissecting the mechanisms underlying old male mating advantage in a butterfly

    • Isabell Karl
    • Stéphanie Heuskin
    • Klaus Fischer

    Original Paper 05 March 2013 Pages: 837 - 849

    

15. Parent-absent signalling of need and its consequences for sibling competition in the barn swallow

    • Andrea Romano
    • Giuseppe Boncoraglio
    • Nicola Saino

    Original Paper 14 March 2013 Pages: 851 - 859