1. Influence of personality, age, sex, and estrous state on chimpanzee problem-solving success

   • Lydia M. Hopper
   • Sara A. Price
   • Rachel L. Kendal

   Original Paper 10 December 2013 Pages: 835 - 847

   

2. The contribution of private and public information in foraging by Australasian gannets

   • Gabriel E. Machovsky-Capuska
   • Mark E. Hauber
   • David Raubenheimer

   Original Paper 14 December 2013 Pages: 849 - 858

   

3. Western scrub-jays allocate longer observation time to more valuable information

   • Arii Watanabe
   • Uri Grodzinski
   • Nicola S. Clayton

   Original Paper 10 December 2013 Pages: 859 - 867

   

4. Hierarchical stimulus processing by dogs (Canis familiaris)

   • Elisa Pitteri
   • Paolo Mongillo
   • Lieta Marinelli

   Original Paper 13 December 2013 Pages: 869 - 877

   

5. Cross-modal transitivity in a California sea lion (Zalophus californianus)

   • Kristy L. Lindemann-Biolsi
   • Colleen Reichmuth

   Original Paper 12 December 2013 Pages: 879 - 890

   

6. Semi-wild chimpanzees open hard-shelled fruits differently across communities

   • Bruce Rawlings
   • Marina Davila-Ross
   • Sarah T. Boysen

   Original Paper 12 December 2013 Pages: 891 - 899

   

7. Performance on the Hamilton search task, and the influence of lateralization, in captive orange-winged Amazon parrots (Amazona amazonica)

   • Victoria A. Cussen
   • Joy A. Mench

   Original Paper 27 December 2013 Pages: 901 - 909

   

8. Effects of training condition on the contribution of specific items to relational processing in baboons (Papio papio)

   • Anaïs Maugard
   • Edward A. Wasserman
   • Joël Fagot

   Original Paper 19 December 2013 Pages: 911 - 924

   

9. Use of kind information for object individuation in young domestic chicks

   • Laura Fontanari
   • Rosa Rugani
   • Giorgio Vallortigara

   Original Paper 25 December 2013 Pages: 925 - 935

   

10. Human–Grey parrot (Psittacus erithacus) reciprocity: a follow-up study

    • Franck Péron
    • Luke Thornberg
    • Irene M. Pepperberg

    Original Paper 29 January 2014 Pages: 937 - 944

    

11. Erratum to: Human–Grey parrot (Psittacus erithacus) reciprocity: a follow-up study

    • Franck Péron
    • Luke Thornburg
    • Irene M. Pepperberg

    Erratum 25 February 2014 Pages: 945 - 945

12. The ecology of spatial memory in four lemur species

    • Alexandra G. Rosati
    • Kerri Rodriguez
    • Brian Hare

    Original Paper 29 January 2014 Pages: 947 - 961

    

13. The role of key features in predator recognition by untrained birds

    • Jana Beránková
    • Petr Veselý
    • Roman Fuchs

    Original Paper 24 January 2014 Pages: 963 - 971

    

14. Transitive inference by pigeons: Does the geometric presentation of the stimuli make a difference?

    • Carter W. Daniels
    • Jennifer R. Laude
    • Thomas R. Zentall

    Original Paper 31 January 2014 Pages: 973 - 981

    

15. Gambling primates: reactions to a modified Iowa Gambling Task in humans, chimpanzees and capuchin monkeys

    • Darby Proctor
    • Rebecca A. Williamson
    • Sarah F. Brosnan

    Original Paper 07 February 2014 Pages: 983 - 995

    

16. Socially learned habituation to human observers in wild chimpanzees

    • Liran Samuni
    • Roger Mundry
    • Catherine Hobaiter

    Original Paper 06 February 2014 Pages: 997 - 1005

    

17. Horses (Equus caballus) discriminate body odour cues from conspecifics

    • F. Péron
    • R. Ward
    • O. Burman

    Short Communication 05 December 2013 Pages: 1007 - 1011

    

18. Nocturnal homing in the tropical amblypygid Phrynus pseudoparvulus (Class Arachnida, Order Amblypygi)

    • Eileen A. Hebets
    • Eben J. Gering
    • Daniel D. Wiegmann

    Short Communication 17 December 2013 Pages: 1013 - 1018

    

19. Suboptimal choice by dogs: when less is better than more

    • Kristina F. Pattison
    • Thomas R. Zentall

    Short Communication 18 March 2014 Pages: 1019 - 1022