1. Its own reward: lessons to be drawn from the reversed-reward contingency paradigm

   • Eran M. Shifferman

   Review 11 February 2009 Pages: 547 - 558

2. Bobwhite quail (Colinus virginianus) hatchlings track the direction of human gaze

   • Mark Jaime
   • Juan Pablo Lopez
   • Robert Lickliter

   Original Paper 11 February 2009 Pages: 559 - 565

   

3. Great apes’ performance in discriminating weight and achromatic color

   • Cornelia Schrauf
   • Josep Call

   Original Paper Open access 24 February 2009 Pages: 567 - 574

   

4. Metamemory in tufted capuchin monkeys (Cebus apella)

   • Kazuo Fujita

   Original Paper 26 February 2009 Pages: 575 - 585

   

5. Chimpanzees (Pan troglodytes) do not develop contingent reciprocity in an experimental task

   • Sarah Frances Brosnan
   • Joan B. Silk
   • Steven J. Schapiro

   Original Paper Open access 04 March 2009 Pages: 587 - 597

   

6. Spatial memory in the grey mouse lemur (Microcebus murinus)

   • Mia-Lana Lührs
   • Melanie Dammhahn
   • Claudia Fichtel

   Original Paper Open access 05 March 2009 Pages: 599 - 609

   

7. Socially dependent auditory laterality in domestic horses (Equus caballus)

   • Muriel Basile
   • Sarah Boivin
   • Alban Lemasson

   Original Paper 13 March 2009 Pages: 611 - 619

   

8. A comparative approach to dogs’ (Canis familiaris) and human infants’ comprehension of various forms of pointing gestures

   • Gabriella Lakatos
   • Krisztina Soproni
   • Ádám Miklósi

   Original Paper 03 April 2009 Pages: 621 - 631

   

9. Comparing black-capped (Poecile atricapillus) and mountain chickadees (Poecile gambeli): use of geometric and featural information in a spatial orientation task

   • Emily R. Batty
   • Laurie L. Bloomfield
   • Christopher B. Sturdy

   Original Paper 19 April 2009 Pages: 633 - 641

   

10. How horses (Equus caballus) see the world: humans as significant “objects”

    • Carole Fureix
    • Patrick Jego
    • Martine Hausberger

    Original Paper 21 April 2009 Pages: 643 - 654