OOIR: Observatory of International Research

Papers

(The TQCC of Animal Cognition is 7. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-05-01 to 2025-05-01.)

Article	Citations
Spaced training enhances equine learning performance	41
“Cognition in marine mammals: the strength of flexibility in adapting to marine life”	35
Seasonal changes in problem-solving in wild African striped mice	21
Thinking about order: a review of common processing of magnitude and learned orders in animals	21
Planning actions with a magnetic tool: how initial tool orientation and number of functional ends influence motor planning abilities in capuchin monkeys (Sapajus spp.)	18
Correction to: If horses had toes: demonstrating mirror self recognition at group level in Equus caballus	18
House sparrows use learned information selectively based on whether reward is hidden or visible	18
Learning to anticipate mate presence shapes individual sex roles in the hermaphroditic pond snail, Lymnaea stagnalis	16
Pet dogs (Canis familiaris) re-engage humans after joint activity	16
Disentangling help-seeking and giving up: differential human-directed gazing by dogs in a modified unsolvable task paradigm	16
Does owner handedness influence paw preference in dogs?	16
Injury shortens life expectancy in ants and affects some risk-related decisions of workers	15
Assessment of predation risk through conspecific cues by anuran larvae	15
Cognitive flexibility in a Tanganyikan bower-building cichlid, Aulonocranus dewindti	15
Nest sanitation as an effective defence against brood parasitism	15
Horses discriminate between human facial and vocal expressions of sadness and joy	15
Life is in motion (through a chick’s eye)	15
Mutual mother–pup vocal recognition in the highly colonial Cape fur seal: evidence of discrimination of calls with a high acoustic similarity	14
The PROUST hypothesis: the embodiment of olfactory cognition	14
Grouping rule in tadpole: is quantity more or size assortment more important?	14
Sex differences in social buffering and social contagion of alarm responses in zebrafish	14
Learning and organization of within-session sequences by pigeons (Columba livia)	14
Spot the odd one out: do snake pictures capture macaques’ attention more than other predators?	14
Domestic cats (Felis catus) prefer freely available food over food that requires effort	14
Both age and experience are important for successful problem solving in juvenile fawn-footed mosaic-tailed rats Melomys cervinipes	13

Lessons learned in animal acoustic cognition through comparisons with humans	12
What drives horse success at following human-given cues? An investigation of handler familiarity and living conditions	11
On being a Hydra with, and without, a nervous system: what do neurons add?	11
A promising novel judgement bias test to evaluate affective states in dogs (Canis familiaris)	11
A new protocol for investigating visual two-choice discrimination learning in lizards	11
Cognitive control of song production by humpback whales	11
Context specificity of latent inhibition in the snail Cornu aspersum	10
Changes in the anxiety-like and fearful behavior of shrimp following daily threatening experiences	10
Impact of environmental complexity and stocking density on affective states of rainbow trout (Oncorhynchus mykiss)	10
Smart sharks: a review of chondrichthyan cognition	10
Decision making under risk: framing effects in pigeon risk preferences	10
A comparative study of mirror self-recognition in three corvid species	10
Penguins perceive variations of source- and filter-related vocal parameters of species-specific vocalisations	10
Searching high and low: domestic dogs’ understanding of solidity	9
Orientation by environmental geometry and feature cues in the green and black poison frog (Dendrobates auratus)	9
Testing use of the first multi-partner cognitive enrichment devices by a group of male bottlenose dolphins	9
Individual recognition and long-term memory of inanimate interactive agents and humans in dogs	9
Impact of exploration behavior, aptitude for pellet consumption, and the predation practice on the performance in consecutive live prey foraging tests in a piscivorous species	9
Overlooked evidence for semantic compositionality and signal reduction in wild chimpanzees (Pan troglodytes)	9
Incrementing non-matching- but not matching-to-sample is rapidly learned in an automated version of the odor span task	9
Host parent responses to heterospecific parasite nestling alarm calls are independent of past and current experience with experimental brood parasitism	9
Cue polarization and representation in mouse home base behaviors	9
Left or right, that is the question: use of egocentric frame of reference and the right-eye advantage for understanding gestural signs in bottlenose dolphins (Tursiops truncatus)	9
Quantitative abilities of invertebrates: a methodological review	9
Can rats and ants exchange information between the horizontal and vertical domains?	9
Evidence of successive negative contrast in terrestrial toads (Rhinella arenarum): central or peripheral effect?	9
Behavioral laterality is correlated with problem-solving performance in a songbird	9
Context-dependent use of olfactory cues by foragers of Vespula germanica social wasps	8
Tolerant macaque species are less impulsive and reactive	8
Emulative learning of a two-step task in free-ranging domestic pigs	8
African jewel fish (Hemichromis bimaculatus) distinguish individual faces based on their unique iridophore patterns	8
The deterrent effects of individual monoterpene odours on the dietary decisions of African elephants	8
Intra- and interspecific variation in self-control capacities of parrots in a delay of gratification task	8
Basal cognition: shifting the center of gravity (again)	8
An exploratory analysis of head-tilting in dogs	8
Plasticity for the kin and conspecific preferences in the frog tadpoles (Rana ornativentris)	8
Novel object recognition in Octopus maya	8
Performance on inhibitory tasks does not relate to handedness in several small groups of Callitrichids	8
Learning about construction behaviour from observing an artefact: can experience with conspecifics aid in artefact recognition?	8
Volumetric and connectivity assessment of the caudate nucleus in California sea lions and coyotes	8
After 150 years of watching: is there a need for synthetic ethology?	8
Are you better than me? Social comparisons in carrion crows (Corvus corone)	8
Wild skuas can use acoustic cues to locate hidden food	8
Effects of early noise exposure on hippocampal-dependent behaviors during adolescence in male rats: influence of different housing conditions	7
Varieties of visual navigation in insects	7
Quantity discrimination by kittens of the domestic cat (Felis silvestris catus)	7
Long-term stability of vocal individuality cues in a territorial and monogamous seabird	7
Domestication effects on social information transfer in chickens	7
Social experience drives the development of holistic face processing in paper wasps	7
First record of geophagy in Jungle Babbler (Turdoides striata) prior to egg-laying: an instinct for calcium supplement	7

Odor-based mate choice copying in deer mice is not affected by familiarity or kinship	7
Gender differences in animal cognition science	7
Cognition of the manatee: past research and future developments	7
Through the eyes of a hunter: assessing perception and exclusion performance in ground-hornbills	7
Mirror self-recognition in gorillas (Gorilla gorilla gorilla): a review and evaluation of mark test replications and variants	7
Repeated testing does not confound cognitive performance in the Western Australian magpie (Cracticus tibicen dorsalis)	7
Nest box entrance hole size can influence nest site selection and nest defence behaviour in Japanese tits	7
Bold and bright: shy and supple? The effect of habitat type on personality–cognition covariance in the Aegean wall lizard (Podarcis erhardii)	7
Visual categories and concepts in the avian brain	7
Count-based decision-making in mice: numerosity vs. stimulus control	7
Juvenile vervet monkeys rely on others when responding to danger	7
Behavioural synchronization and social referencing of dogs and humans: walking in dyad vs in group	7
Visual perception of emotion cues in dogs: a critical review of methodologies	7