A review of the unsolvable task in dog communication and cognition: comparing different methodologies Juliana Wallner Werneck MendesBriseida ResendeCarine Savalli Review 23 March 2021 Pages: 907 - 922
Neural substrates involved in the cognitive information processing in teleost fish R. CalvoV. Schluessel Review Open access 27 April 2021 Pages: 923 - 946
Using a new video rating tool to crowd-source analysis of behavioural reaction to stimuli Holly Root-GutteridgeLouise P. BrownDavid Reby Methods Paper Open access 09 March 2021 Pages: 947 - 956
A kestrel without hooked beak and talons is not a kestrel for the red-backed shrike (Lanius collurio) Michal NěmecTereza KučerováRoman Fuchs Original Paper 19 March 2021 Pages: 957 - 968
I know a dog when I see one: dogs (Canis familiaris) recognize dogs from videos Paolo MongilloCarla EatheringtonLieta Marinelli Original Paper Open access 19 March 2021 Pages: 969 - 979
Two-dimensional reward evaluation in mice Vladislav NachevMarion RivalanYork Winter Original Paper Open access 15 March 2021 Pages: 981 - 998
Horses are sensitive to baby talk: pet-directed speech facilitates communication with humans in a pointing task and during grooming Léa LansadeMiléna TröschLudovic Calandreau Original Paper 18 March 2021 Pages: 999 - 1006
Social context shapes cognitive abilities: associative memories are modulated by fight outcome and social isolation in the crab Neohelice granulata M. Jimena SantosSantiago A. MerloMaria E. Pedreira Original Article 31 March 2021 Pages: 1007 - 1026
The effect of urbanization on innovation in spotted hyenas Lily Johnson-UlrichGidey YirgaKay E. Holekamp Original Paper 09 March 2021 Pages: 1027 - 1038
Watching others in a positive state does not induce optimism bias in common marmosets (Callithrix jacchus), but leads to behaviour indicative of competition J. E. C. AdriaenseV. ŠlipogorT. Bugnyar Original Paper Open access 16 March 2021 Pages: 1039 - 1056
Equal performance but distinct behaviors: sex differences in a novel object recognition task and spatial maze in a highly social cichlid fish Kelly J. WallaceHans A. Hofmann Original Paper 15 March 2021 Pages: 1057 - 1073
Prosociality and reciprocity in bottlenose dolphins (Tursiops truncatus) Mathilde LalotFabienne DelfourDalila Bovet Original Paper 17 March 2021 Pages: 1075 - 1086
The performance of domestic dogs (Canis lupus familiaris) on two versions of the object choice task Hannah ClarkDavid A. Leavens Original Paper Open access 09 March 2021 Pages: 1087 - 1098
If horses had toes: demonstrating mirror self recognition at group level in Equus caballus Paolo BaragliChiara ScopaElisabetta Palagi Original Paper Open access 13 March 2021 Pages: 1099 - 1108
Feline communication strategies when presented with an unsolvable task: the attentional state of the person matters Lingna ZhangKatie B. NeedhamFrançois Martin Original Paper Open access 02 April 2021 Pages: 1109 - 1119
Performance of Asian elephants (Elephas maximus) on a quantity discrimination task is similar to that of African savanna elephants (Loxodonta africana) Rebecca J. SnyderLisa P. BarrettBonnie M. Perdue Original Paper 03 April 2021 Pages: 1121 - 1131
Production of regular rhythm induced by external stimuli in rats Noriko KatsuShoko YukiKazuo Okanoya Original Paper 22 March 2021 Pages: 1133 - 1141
2D or not 2D? An fMRI study of how dogs visually process objects Ashley PrichardRaveena ChhibberGregory S. Berns Original Paper 27 March 2021 Pages: 1143 - 1151
