1. Tool choice on the basis of rigidity in capuchin monkeys

   • Héctor Marín Manrique
   • Gloria Sabbatini
   • Elisabetta Visalberghi

   Original Paper 06 May 2011 Pages: 775 - 786

   

2. Is acoustic evaluation in a non-primate mammal, the tree shrew, affected by context?

   • Wiebke S. Konerding
   • Jennifer Brunke
   • Elke Zimmermann

   Original Paper 07 May 2011 Pages: 787 - 795

   

3. Discrimination of painting style and quality: pigeons use different strategies for different tasks

   • Shigeru Watanabe

   Original Paper 10 May 2011 Pages: 797 - 808

   

4. Prey behaviour across antipredator adaptation types: how does growth trajectory influence learning of predators?

   • Maud C. O. Ferrari
   • Grant E. Brown
   • Douglas P. Chivers

   Original Paper 10 May 2011 Pages: 809 - 816

   

5. Wild birds recognize individual humans: experiments on magpies, Pica pica

   • Won Young Lee
   • Sang-im Lee
   • Piotr G. Jablonski

   Original Paper 26 May 2011 Pages: 817 - 825

   

6. Serial gesturing by wild chimpanzees: its nature and function for communication

   • Catherine Hobaiter
   • Richard W. Byrne

   Original Paper 12 May 2011 Pages: 827 - 838

   

7. An inversion effect modified by expertise in capuchin monkeys

   • Jennifer J. Pokorny
   • Christine E. Webb
   • Frans B. M. de Waal

   Original Paper 15 May 2011 Pages: 839 - 846

   

8. Erratum to: An inversion effect modified by expertise in capuchin monkeys

   • Jennifer J. Pokorny
   • Christine E. Webb
   • Frans B. M. de Waal

   Erratum 14 June 2011 Pages: 847 - 847

   

9. Functionally referential and intentional communication in the domestic dog: effects of spatial and social contexts

   • Florence Gaunet
   • Bertrand L. Deputte

   Original Paper 03 June 2011 Pages: 849 - 860

   

10. Visual discrimination, sequential learning and memory retrieval in the Australian desert ant Melophorus bagoti

    • Sebastian Schwarz
    • Ken Cheng

    Original Paper 29 May 2011 Pages: 861 - 870

    

11. Chimpanzee problem-solving: contrasting the use of causal and arbitrary cues

    • Daniel Hanus
    • Josep Call

    Original Paper 07 June 2011 Pages: 871 - 878

    

12. Species difference in the timing of gaze movement between chimpanzees and humans

    • Fumihiro Kano
    • Masaki Tomonaga

    Original Paper 07 June 2011 Pages: 879 - 892

    

13. Chimpanzees’ use of conspecific cues in matching-to-sample tasks: public information use in a fully automated testing environment

    • Christopher Flynn Martin
    • Dora Biro
    • Tetsuro Matsuzawa

    Original Paper 11 June 2011 Pages: 893 - 902

    

14. Target animacy influences gorilla handedness

    • Gillian S. Forrester
    • David A. Leavens
    • Giorgio Vallortigara

    Short Communication 12 May 2011 Pages: 903 - 907

    

15. Pigeons discriminate between human feeders

    • Ahmed Belguermi
    • Dalila Bovet
    • Gérard Leboucher

    Short Communication 07 June 2011 Pages: 909 - 914

    

16. Do inexperienced bumblebee foragers use scent marks as social information?

    • Ellouise Leadbeater
    • Lars Chittka

    Short Communication 04 June 2011 Pages: 915 - 919

    

17. Differences in gorilla nettle-feeding between captivity and the wild: local traditions, species typical behaviors or merely the result of nutritional deficiencies?

    • Shelly Masi

    Commentary 17 September 2011 Pages: 921 - 925