Developmental stress impairs performance on an association task in male and female songbirds, but impairs auditory learning in females only Tara M. FarrellAmanda MorganScott A. MacDougall-Shackleton Original Paper 04 August 2015 Pages: 1 - 14
Stimulus probability effects on temporal bisection performance of mice (Mus musculus) Başak AkdoğanFuat Balcı Original Paper 05 August 2015 Pages: 15 - 30
Caching in the presence of competitors: Are Cape ground squirrels (Xerus inauris) sensitive to audience attentiveness? Jamie SamsonMarta B. Manser Original Paper 05 August 2015 Pages: 31 - 38
Sequential recall of meaningful and arbitrary sequences by orangutans and human children: Does content matter? Elizabeth RennerElizabeth E. PriceFrancys Subiaul Original Paper 23 August 2015 Pages: 39 - 52
Hint-seeking behaviour of western scrub-jays in a metacognition task Arii WatanabeNicola S. Clayton Original Paper 13 August 2015 Pages: 53 - 64
Zebra finches are able to learn affixation-like patterns Jiani ChenNaomi JansenCarel ten Cate Original Paper Open access 22 August 2015 Pages: 65 - 73
Comparison of discrete ratios by rhesus macaques (Macaca mulatta) Caroline B. DruckerMarley A. RossaElizabeth M. Brannon Original Paper 19 August 2015 Pages: 75 - 89
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 KeshenJerome Cohen Original Paper Open access 27 August 2015 Pages: 91 - 107
Trading up: chimpanzees (Pan troglodytes) show self-control through their exchange behavior Michael J. BeranMattea S. RossettieAudrey E. Parrish Original Paper 01 September 2015 Pages: 109 - 121
The MĂĽller-Lyer illusion in the teleost fish Xenotoca eiseni Valeria Anna SovranoOsvaldo da PosLiliana Albertazzi Original Paper 11 September 2015 Pages: 123 - 132
Cooperation in wild Barbary macaques: factors affecting free partner choice Sandra MolestiBonaventura Majolo Original Paper 09 September 2015 Pages: 133 - 146
The effects of being watched on resource acquisition in chimpanzees and human children Jan M. EngelmannEsther HerrmannMichael Tomasello Original Paper 08 September 2015 Pages: 147 - 151
Place versus response learning in fish: a comparison between species Claire L. McAroeCathy M. CraigRichard A. Holland Original Paper 18 September 2015 Pages: 153 - 161
Who are the real bird brains? Qualitative differences in behavioral flexibility between dogs (Canis familiaris) and pigeons (Columba livia) Jennifer R. LaudeKristina F. PattisonThomas R. Zentall Original Paper 12 September 2015 Pages: 163 - 169
Early-life object exposure with a habituated mother reduces fear reactions in foals Janne Winther Christensen Original Paper 22 September 2015 Pages: 171 - 179
Evidence of self-organization in a gregarious land-dwelling crustacean (Isopoda: Oniscidea) Pierre BrolyRomain MullierJean-Louis Deneubourg Original Paper 21 September 2015 Pages: 181 - 192
Man’s other best friend: domestic cats (F. silvestris catus) and their discrimination of human emotion cues Moriah GalvanJennifer Vonk Original Paper 23 September 2015 Pages: 193 - 205
Laterality as an indicator of emotional stress in ewes and lambs during a separation test Shanis BarnardLindsay MatthewsNicola Ferri Original Paper 03 October 2015 Pages: 207 - 214
Asian elephants acquire inaccessible food by blowing Kaori MizunoNaoko IrieNobuyuki Kutsukake Original Paper 05 November 2015 Pages: 215 - 222
Meaning and ostension in great ape gestural communication Richard Moore Original Paper 30 July 2015 Pages: 223 - 231
Meaning in great ape communication: summarising the debate Thomas C. Scott-Phillips Short Communication Open access 16 November 2015 Pages: 233 - 238
Evidence for the perceptual origin of right-sided feeding biases in cetaceans Karina KareninaAndrey GiljovYegor Malashichev Short Communication 09 July 2015 Pages: 239 - 243
Not eating like a pig: European wild boar wash their food Volker SommerAdriana LoweTanja Dietrich Short Communication 21 July 2015 Pages: 245 - 249