How the Thatcher illusion reveals evolutionary differences in the face processing of primates Kimberly B. WeldonJessica TaubertLisa A. Parr Original Paper 19 February 2013 Pages: 691 - 700
Switching strategies: a dolphin’s use of passive and active acoustics to imitate motor actions Kelly JaakkolaEmily GuarinoJane Hecksher Original Paper 07 February 2013 Pages: 701 - 709
Eighteen-month-old human infants show intensive development in comprehension of different types of pointing gestures Edina PfandlerGabriella LakatosÁdám Miklósi Original Paper 15 February 2013 Pages: 711 - 719
Test sensitivity is important for detecting variability in pointing comprehension in canines Péter PongráczMárta GácsiÁdám Miklósi Original Paper 08 February 2013 Pages: 721 - 735
Pigeons learn virtual patterned-string problems in a computerized touch screen environment Edward A. WassermanYasuo NagasakaStephen J. Brzykcy Original Paper 09 February 2013 Pages: 737 - 753
Means–end comprehension in four parrot species: explained by social complexity Anastasia KrasheninnikovaStefan BrägerRalf Wanker Original Paper 09 February 2013 Pages: 755 - 764
Inequity aversion in human adults: testing behavioural criteria from comparative cognition Ljerka OstojićNicola S. Clayton Original Paper 16 February 2013 Pages: 765 - 772
Facial expressions in common marmosets (Callithrix jacchus) and their use by conspecifics Caralyn KempGisela Kaplan Original Paper 15 February 2013 Pages: 773 - 788
Higher-order semantic structures in an African Grey parrot’s vocalizations: evidence from the hyperspace analog to language (HAL) model Allison B. KaufmanErin N. Colbert-WhiteCurt Burgess Original Paper 17 February 2013 Pages: 789 - 801
Solving small spaces: investigating the use of landmark cues in brown capuchins (Cebus apella) Kelly D. HughesEnma MulloLaurie R. Santos Original Paper 22 February 2013 Pages: 803 - 817
Egg arrangement in avian clutches covaries with the rejection of foreign eggs Lenka PolačikováFugo TakasuTomáš Grim Original Paper 27 February 2013 Pages: 819 - 828
Monkeys perform as well as apes and humans in a size discrimination task Vanessa SchmittIris KrögerJulia Fischer Original Paper Open access 27 February 2013 Pages: 829 - 838
Testing visual short-term memory of pigeons (Columba livia) and a rhesus monkey (Macaca mulatta) with a location change detection task Kenneth J. LeisingL. Caitlin ElmoreAnthony A. Wright Short Communication 11 June 2013 Pages: 839 - 844
Working and reference memory of pigs (Sus scrofa domesticus) in a holeboard spatial discrimination task: the influence of environmental enrichment J. Elizabeth BolhuisMarije OostindjerBas Kemp Short Communication 06 June 2013 Pages: 845 - 850
