1. Cognitive consequences of cooperative breeding in primates?

   • Judith Maria Burkart
   • Carel P. van Schaik

   Review 24 July 2009 Pages: 1 - 19

   

2. On the generality and limits of abstraction in rats and humans

   • Gonzalo P. Urcelay
   • Ralph R. Miller

   Review 10 December 2009 Pages: 21 - 32

   

3. Multimodal communication by captive chimpanzees (Pan troglodytes)

   • David A. Leavens
   • Jamie L. Russell
   • William D. Hopkins

   Original Paper 07 June 2009 Pages: 33 - 40

   

4. Do cleaner fish learn to feed against their preference in a reverse reward contingency task?

   • Evin Danisman
   • Redouan Bshary
   • Ralph Bergmüller

   Original Paper 16 June 2009 Pages: 41 - 49

   

5. Human facial discrimination in horses: can they tell us apart?

   • Sherril M. Stone

   Original Paper 17 June 2009 Pages: 51 - 61

   

6. Cue use by foals (Equus caballus) in a discrimination learning task

   • B. Hothersall
   • E. V. Gale
   • C. J. Nicol

   Original Paper 12 June 2009 Pages: 63 - 74

   

7. Pigeons can discriminate “good” and “bad” paintings by children

   • Shigeru Watanabe

   Original Paper 16 June 2009 Pages: 75 - 85

   

8. Tufted capuchin monkeys (Cebus apella) show understanding of human attentional states when requesting food held by a human

   • Yuko Hattori
   • Hika Kuroshima
   • Kazuo Fujita

   Original Paper 11 June 2009 Pages: 87 - 92

   

9. Rhesus monkeys (Macaca mulatta) adaptively monitor uncertainty while multi-tasking

   • J. David Smith
   • Joshua S. Redford
   • David A. Washburn

   Original Paper 13 June 2009 Pages: 93 - 101

   

10. What do dolphins (Tursiops truncatus) understand about hidden objects?

    • Kelly Jaakkola
    • Emily Guarino
    • Marie Trone

    Original Paper 19 June 2009 Pages: 103 - 120

    

11. Serial list combination by monkeys (Macaca mulatta): test cues and linking

    • F. Robert Treichler
    • Mary Ann Raghanti

    Original Paper 17 June 2009 Pages: 121 - 131

    

12. Peck tracking: a method for localizing critical features within complex pictures for pigeons

    • Lars Dittrich
    • Jonas Rose
    • Onur Güntürkün

    Original Paper 26 June 2009 Pages: 133 - 143

    

13. How do wild baboons (Papio ursinus) plan their routes? Travel among multiple high-quality food sources with inter-group competition

    • Rahel Noser
    • Richard W. Byrne

    Original Paper 01 July 2009 Pages: 145 - 155

    

14. Encoding geometric and non-geometric information: a study with evolved agents

    • Michela Ponticorvo
    • Orazio Miglino

    Original Paper 07 July 2009 Pages: 157 - 174

    

15. Landmark use by Clark’s nutcrackers (Nucifraga columbiana): influence of disorientation and cue rotation on distance and direction estimates

    • Debbie M. Kelly
    • Alan C. Kamil
    • Ken Cheng

    Original Paper 05 July 2009 Pages: 175 - 188

    

16. Kin recognition loss following anesthesia in beetle larvae (Aleochara bilineata, Coleoptera, Staphylinidae)

    • Anne Lizé
    • Julie Clément
    • Denis Poinsot

    Short Communication 13 June 2009 Pages: 189 - 194

    

17. Erratum to: Do captive mandrills invent new gestures?

    • Mark E. Laidre

    Erratum 29 October 2009 Pages: 195 - 195