1. Extinction memory in the crab Chasmagnathus: recovery protocols and effects of multi-trial extinction training

   • Yanil Hepp
   • Luis María Pérez-Cuesta
   • María Eugenia Pedreira

   Original Paper 08 October 2009 Pages: 391 - 403

   

2. Spotting animals in natural scenes: efficiency of humans and monkeys at very low contrasts

   • Marc J.-M. Macé
   • Arnaud Delorme
   • Michèle Fabre-Thorpe

   Original Paper 18 November 2009 Pages: 405 - 418

   

3. Bonobos, chimpanzees, gorillas, and orang utans use feature and spatial cues in two spatial memory tasks

   • Patricia Kanngiesser
   • Josep Call

   Original Paper Open access 13 November 2009 Pages: 419 - 430

   

4. Subjective value of risky foods for individual domestic chicks: a hierarchical Bayesian model

   • Ai Kawamori
   • Toshiya Matsushima

   Original Paper 17 November 2009 Pages: 431 - 441

   

5. Learning of magnetic compass directions in pigeons

   • Christiane Wilzeck
   • Wolfgang Wiltschko
   • Helmut Prior

   Original Paper 25 November 2009 Pages: 443 - 451

   

6. Features enhance the encoding of geometry

   • Debbie M. Kelly

   Original Paper 09 December 2009 Pages: 453 - 462

   

7. Experience and geometry: controlled-rearing studies with chicks

   • Cinzia Chiandetti
   • Giorgio Vallortigara

   Original Paper 04 December 2009 Pages: 463 - 470

   

8. Mother–Calf vocal communication in Atlantic walrus: a first field experimental study

   • Isabelle Charrier
   • Thierry Aubin
   • Nicolas Mathevon

   Original Paper 04 December 2009 Pages: 471 - 482

   

9. The apes’ edge: positional learning in chimpanzees and humans

   • Ansgar D. Endress
   • Sarah Carden
   • Marc D. Hauser

   Original Paper 11 December 2009 Pages: 483 - 495

   

10. Domesticated dogs’ (Canis familiaris) use of the solidity principle

    • Shannon M. A. Kundey
    • Andres De Los Reyes
    • Rebecca German

    Original Paper 20 December 2009 Pages: 497 - 505

    

11. A new method for studying problem solving and tool use in stingrays (Potamotrygon castexi)

    • Michael J. Kuba
    • Ruth A. Byrne
    • Gordon M. Burghardt

    Original Paper 18 December 2009 Pages: 507 - 513

    

12. Perceptual chunking in the self-produced songs of Bengalese finches (Lonchura striata var. domestica)

    • Rie Suge
    • Kazuo Okanoya

    Original Paper 29 December 2009 Pages: 515 - 523

    

13. Discrimination of human and dog faces and inversion responses in domestic dogs (Canis familiaris)

    • Anaïs Racca
    • Eleonora Amadei
    • Daniel Mills

    Original Paper 18 December 2009 Pages: 525 - 533

    

14. What matters in the associative learning of visual cues in foraging parasitoid wasps: colour or brightness?

    • Emmanuel Desouhant
    • Simon Navel
    • Carlos Bernstein

    Original Paper 18 December 2009 Pages: 535 - 543

    

15. The performance of rooks in a cooperative task depends on their temperament

    • Christelle Scheid
    • Ronald Noë

    Original Paper 18 December 2009 Pages: 545 - 553

    

16. Perception of biological motion in common marmosets (Callithrix jacchus): by females only

    • J. Brown
    • G. Kaplan
    • G. Vallortigara

    Original Paper 06 January 2010 Pages: 555 - 564

    

17. Egocentric and allocentric search: effects of platform distance and environmental cues

    • Carolina Tamara
    • Joseph Leffel
    • William Timberlake

    Original Paper 10 January 2010 Pages: 565 - 581

    

18. Differential outcomes facilitate same/different concept learning

    • Kelly A. Schmidtke
    • Jeffrey S. Katz
    • Anthony A. Wright

    Short Communication 24 November 2009 Pages: 583 - 589