OOIR: Observatory of International Research

Papers

(The TQCC of Animal Cognition is 8. 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 2021-09-01 to 2025-09-01.)

Article	Citations
“Cognition in marine mammals: the strength of flexibility in adapting to marine life”	50
Correction to: If horses had toes: demonstrating mirror self recognition at group level in Equus caballus	48
Disentangling help-seeking and giving up: differential human-directed gazing by dogs in a modified unsolvable task paradigm	25
Does owner handedness influence paw preference in dogs?	23
Assessment of predation risk through conspecific cues by anuran larvae	21
House sparrows use learned information selectively based on whether reward is hidden or visible	20
Learning to anticipate mate presence shapes individual sex roles in the hermaphroditic pond snail, Lymnaea stagnalis	20
Nest sanitation as an effective defence against brood parasitism	20
Thinking about order: a review of common processing of magnitude and learned orders in animals	20
Seasonal changes in problem-solving in wild African striped mice	18
Spaced training enhances equine learning performance	18
Pet dogs (Canis familiaris) re-engage humans after joint activity	17
Life is in motion (through a chick’s eye)	17
Injury shortens life expectancy in ants and affects some risk-related decisions of workers	16
Cognitive flexibility in a Tanganyikan bower-building cichlid, Aulonocranus dewindti	16
Sex differences in social buffering and social contagion of alarm responses in zebrafish	16
Mutual mother–pup vocal recognition in the highly colonial Cape fur seal: evidence of discrimination of calls with a high acoustic similarity	16
Spot the odd one out: do snake pictures capture macaques’ attention more than other predators?	15
Horses discriminate between human facial and vocal expressions of sadness and joy	14
Grouping rule in tadpole: is quantity more or size assortment more important?	14
Lessons learned in animal acoustic cognition through comparisons with humans	13
Learning and organization of within-session sequences by pigeons (Columba livia)	13
On being a Hydra with, and without, a nervous system: what do neurons add?	12
Decision making under risk: framing effects in pigeon risk preferences	12
A promising novel judgement bias test to evaluate affective states in dogs (Canis familiaris)	12

A new protocol for investigating visual two-choice discrimination learning in lizards	12
Both age and experience are important for successful problem solving in juvenile fawn-footed mosaic-tailed rats Melomys cervinipes	12
A comparative study of mirror self-recognition in three corvid species	12
The PROUST hypothesis: the embodiment of olfactory cognition	12
Cognitive control of song production by humpback whales	12
What drives horse success at following human-given cues? An investigation of handler familiarity and living conditions	12
Smart sharks: a review of chondrichthyan cognition	11
Impact of environmental complexity and stocking density on affective states of rainbow trout (Oncorhynchus mykiss)	11
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)	11
Context specificity of latent inhibition in the snail Cornu aspersum	11
Incrementing non-matching- but not matching-to-sample is rapidly learned in an automated version of the odor span task	11
Penguins perceive variations of source- and filter-related vocal parameters of species-specific vocalisations	11
Behavioral laterality is correlated with problem-solving performance in a songbird	10
Orientation by environmental geometry and feature cues in the green and black poison frog (Dendrobates auratus)	10
Overlooked evidence for semantic compositionality and signal reduction in wild chimpanzees (Pan troglodytes)	10
Searching high and low: domestic dogs’ understanding of solidity	10
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	10
Cue polarization and representation in mouse home base behaviors	10
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
Emulative learning of a two-step task in free-ranging domestic pigs	9
Plasticity for the kin and conspecific preferences in the frog tadpoles (Rana ornativentris)	9
Testing use of the first multi-partner cognitive enrichment devices by a group of male bottlenose dolphins	9
Volumetric and connectivity assessment of the caudate nucleus in California sea lions and coyotes	9
After 150 years of watching: is there a need for synthetic ethology?	9
Tolerant macaque species are less impulsive and reactive	9
Individual recognition and long-term memory of inanimate interactive agents and humans in dogs	9
Host parent responses to heterospecific parasite nestling alarm calls are independent of past and current experience with experimental brood parasitism	9
Context-dependent use of olfactory cues by foragers of Vespula germanica social wasps	9
Are you better than me? Social comparisons in carrion crows (Corvus corone)	9
Basal cognition: shifting the center of gravity (again)	9
Novel object recognition in Octopus maya	8
Performance on inhibitory tasks does not relate to handedness in several small groups of Callitrichids	8
Varieties of visual navigation in insects	8
Mirror self-recognition in gorillas (Gorilla gorilla gorilla): a review and evaluation of mark test replications and variants	8
Wild skuas can use acoustic cues to locate hidden food	8
Intra- and interspecific variation in self-control capacities of parrots in a delay of gratification task	8
Visual perception of emotion cues in dogs: a critical review of methodologies	8
Nest box entrance hole size can influence nest site selection and nest defence behaviour in Japanese tits	8
The deterrent effects of individual monoterpene odours on the dietary decisions of African elephants	8
An exploratory analysis of head-tilting in dogs	8
African jewel fish (Hemichromis bimaculatus) distinguish individual faces based on their unique iridophore patterns	8
Behavioural synchronization and social referencing of dogs and humans: walking in dyad vs in group	8
First record of geophagy in Jungle Babbler (Turdoides striata) prior to egg-laying: an instinct for calcium supplement	8