How chimpanzees (Pan troglodytes) perform in a modified emotional Stroop task Matthias AllritzJosep CallPeter Borkenau Original Paper 27 November 2015 Pages: 435 - 449
Informed horses are influential in group movements, but they may avoid leading Julie AndrieuSéverine HenryBernard Thierry Original Paper 30 November 2015 Pages: 451 - 458
Variations in an African Grey parrot’s speech patterns following ignored and denied requests Erin N. Colbert-WhiteHannah C. HallDorothy M. Fragaszy Original Paper 23 December 2015 Pages: 459 - 469
A reappraisal of successive negative contrast in two populations of domestic dogs Stefanie RiemerSarah L. H. EllisOliver H. P. Burman Original Paper Open access 07 January 2016 Pages: 471 - 481
Should I stay or should I go? Initiation of joint travel in mother–infant dyads of two chimpanzee communities in the wild Marlen FröhlichRoman M. WittigSimone Pika Original Paper Open access 01 February 2016 Pages: 483 - 500
Emotional contagion of distress in young pigs is potentiated by previous exposure to the same stressor Sébastien GoumonMarek Špinka Original Paper 11 January 2016 Pages: 501 - 511
The effect of oxytocin on biological motion perception in dogs (Canis familiaris) Krisztina KovácsAnna KisJózsef Topál Original Paper 07 January 2016 Pages: 513 - 522
Preference for and discrimination of videos of conspecific social behavior in mice Shigeru WatanabeKazutaka ShinozukaTakefumi Kikusui Original Paper 22 January 2016 Pages: 523 - 531
Tiger salamanders’ (Ambystoma tigrinum) response learning and usage of visual cues Shannon M. A. KundeyRoberto MillarChadbourne Allen Original Paper 21 January 2016 Pages: 533 - 541
Rescue of newborn ants by older Cataglyphis cursor adult workers Elise NowbahariCéline AmiraultKaren L. Hollis Original Paper 04 February 2016 Pages: 543 - 553
Differing views: Can chimpanzees do Level 2 perspective-taking? Katja KargMartin SchmelzMichael Tomasello Original Paper Open access 06 February 2016 Pages: 555 - 564
Ontogenetic effects on gazing behaviour: a case study of kennel dogs (Labrador Retrievers) in the impossible task paradigm Biagio D’AnielloAnna Scandurra Original Paper 23 January 2016 Pages: 565 - 570
The effect of training and breed group on problem-solving behaviours in dogs Sarah Marshall-PesciniChiara FrazziPaola Valsecchi Original Paper 10 February 2016 Pages: 571 - 579
Multiple cue use and integration in pigeons (Columba livia) Eric L. G. LeggeChristopher R. MadanElliot A. Ludvig Original Paper 23 February 2016 Pages: 581 - 591
Memory systems in the rat: effects of reward probability, context, and congruency between working and reference memory William A. RobertsNicole A. GuitarHayden MacDonald Original Paper 25 February 2016 Pages: 593 - 604
When and where to practice: social influences on the development of nut-cracking in bearded capuchins (Sapajus libidinosus) Y. EshcharP. IzarD. Fragaszy Original Paper 01 March 2016 Pages: 605 - 618
Reversal learning in gonadectomized marmosets with and without hormone replacement: are males more sensitive to punishment? Matthew LaClairAgnès Lacreuse Original Paper 24 February 2016 Pages: 619 - 630
Scaling reward value with demand curves versus preference tests Lindsay P. SchwartzAlan SilberbergStephen J. Suomi Original Paper 23 February 2016 Pages: 631 - 641
Phonological perception by birds: budgerigars can perceive lexical stress Marisa HoescheleW. Tecumseh Fitch Original Paper Open access 25 February 2016 Pages: 643 - 654
Conserved evolutionary history for quick detection of threatening faces Nobuyuki KawaiKenta KuboSachiko Hayakawa Short Communication 29 December 2015 Pages: 655 - 660
Inhibition in Clark’s nutcrackers (Nucifraga columbiana): results of a detour-reaching test A. VernouilletJ. AndersonD. M. Kelly Short Communication 22 January 2016 Pages: 661 - 665
‘Goats that stare at men’—revisited: do dwarf goats alter their behaviour in response to eye visibility and head direction of a human? Christian NawrothEberhard von BorellJan Langbein Short Communication 28 January 2016 Pages: 667 - 672
Touchscreen assays of learning, response inhibition, and motivation in the marmoset (Callithrix jacchus) Brian D. KangasJack BergmanJoseph T. Coyle Short Communication 03 February 2016 Pages: 673 - 677
