1. Developmental stress impairs performance on an association task in male and female songbirds, but impairs auditory learning in females only

   • Tara M. Farrell
   • Amanda Morgan
   • Scott A. MacDougall-Shackleton

   Original Paper 04 August 2015 Pages: 1 - 14

   

2. Stimulus probability effects on temporal bisection performance of mice (Mus musculus)

   • Başak Akdoğan
   • Fuat Balcı

   Original Paper 05 August 2015 Pages: 15 - 30

   

3. Caching in the presence of competitors: Are Cape ground squirrels (Xerus inauris) sensitive to audience attentiveness?

   • Jamie Samson
   • Marta B. Manser

   Original Paper 05 August 2015 Pages: 31 - 38

   

4. Sequential recall of meaningful and arbitrary sequences by orangutans and human children: Does content matter?

   • Elizabeth Renner
   • Elizabeth E. Price
   • Francys Subiaul

   Original Paper 23 August 2015 Pages: 39 - 52

   

5. Hint-seeking behaviour of western scrub-jays in a metacognition task

   • Arii Watanabe
   • Nicola S. Clayton

   Original Paper 13 August 2015 Pages: 53 - 64

   

6. Zebra finches are able to learn affixation-like patterns

   • Jiani Chen
   • Naomi Jansen
   • Carel ten Cate

   Original Paper Open access 22 August 2015 Pages: 65 - 73

   

7. Comparison of discrete ratios by rhesus macaques (Macaca mulatta)

   • Caroline B. Drucker
   • Marley A. Rossa
   • Elizabeth M. Brannon

   Original Paper 19 August 2015 Pages: 75 - 89

   

8. Rats (Rattus norvegicus) flexibly retrieve objects’ non-spatial and spatial information from their visuospatial working memory: effects of integrated and separate processing of these features in a missing-object recognition task

   • Corrine Keshen
   • Jerome Cohen

   Original Paper Open access 27 August 2015 Pages: 91 - 107

   

9. Trading up: chimpanzees (Pan troglodytes) show self-control through their exchange behavior

   • Michael J. Beran
   • Mattea S. Rossettie
   • Audrey E. Parrish

   Original Paper 01 September 2015 Pages: 109 - 121

   

10. The Müller-Lyer illusion in the teleost fish Xenotoca eiseni

    • Valeria Anna Sovrano
    • Osvaldo da Pos
    • Liliana Albertazzi

    Original Paper 11 September 2015 Pages: 123 - 132

    

11. Cooperation in wild Barbary macaques: factors affecting free partner choice

    • Sandra Molesti
    • Bonaventura Majolo

    Original Paper 09 September 2015 Pages: 133 - 146

    

12. The effects of being watched on resource acquisition in chimpanzees and human children

    • Jan M. Engelmann
    • Esther Herrmann
    • Michael Tomasello

    Original Paper 08 September 2015 Pages: 147 - 151

    

13. Place versus response learning in fish: a comparison between species

    • Claire L. McAroe
    • Cathy M. Craig
    • Richard A. Holland

    Original Paper 18 September 2015 Pages: 153 - 161

    

14. Who are the real bird brains? Qualitative differences in behavioral flexibility between dogs (Canis familiaris) and pigeons (Columba livia)

    • Jennifer R. Laude
    • Kristina F. Pattison
    • Thomas R. Zentall

    Original Paper 12 September 2015 Pages: 163 - 169

    

15. Early-life object exposure with a habituated mother reduces fear reactions in foals

    • Janne Winther Christensen

    Original Paper 22 September 2015 Pages: 171 - 179

    

16. Evidence of self-organization in a gregarious land-dwelling crustacean (Isopoda: Oniscidea)

    • Pierre Broly
    • Romain Mullier
    • Jean-Louis Deneubourg

    Original Paper 21 September 2015 Pages: 181 - 192

    

17. Man’s other best friend: domestic cats (F. silvestris catus) and their discrimination of human emotion cues

    • Moriah Galvan
    • Jennifer Vonk

    Original Paper 23 September 2015 Pages: 193 - 205

    

18. Laterality as an indicator of emotional stress in ewes and lambs during a separation test

    • Shanis Barnard
    • Lindsay Matthews
    • Nicola Ferri

    Original Paper 03 October 2015 Pages: 207 - 214

    

19. Asian elephants acquire inaccessible food by blowing

    • Kaori Mizuno
    • Naoko Irie
    • Nobuyuki Kutsukake

    Original Paper 05 November 2015 Pages: 215 - 222

    

20. Meaning and ostension in great ape gestural communication

    • Richard Moore

    Original Paper 30 July 2015 Pages: 223 - 231

21. Meaning in great ape communication: summarising the debate

    • Thomas C. Scott-Phillips

    Short Communication Open access 16 November 2015 Pages: 233 - 238

22. Evidence for the perceptual origin of right-sided feeding biases in cetaceans

    • Karina Karenina
    • Andrey Giljov
    • Yegor Malashichev

    Short Communication 09 July 2015 Pages: 239 - 243

    

23. Not eating like a pig: European wild boar wash their food

    • Volker Sommer
    • Adriana Lowe
    • Tanja Dietrich

    Short Communication 21 July 2015 Pages: 245 - 249