OOIR: Observatory of International Research

Papers

(The median citation count of Animal Cognition is 4. 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
Thinking about order: a review of common processing of magnitude and learned orders in animals	20
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
Spaced training enhances equine learning performance	18
Seasonal changes in problem-solving in wild African striped mice	18
Pet dogs (Canis familiaris) re-engage humans after joint activity	17
Life is in motion (through a chick’s eye)	17
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
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
Spot the odd one out: do snake pictures capture macaques’ attention more than other predators?	15
Grouping rule in tadpole: is quantity more or size assortment more important?	14
Horses discriminate between human facial and vocal expressions of sadness and joy	14
Lessons learned in animal acoustic cognition through comparisons with humans	13
Learning and organization of within-session sequences by pigeons (Columba livia)	13
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
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
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
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
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
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
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
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
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
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
Social experience drives the development of holistic face processing in paper wasps	7
Through the eyes of a hunter: assessing perception and exclusion performance in ground-hornbills	7
Cognition of the manatee: past research and future developments	7
Slowly walking down to the more food: relative quantity discrimination in African spurred tortoises (Centrochelys sulcata)	7
Puppies in the problem-solving paradigm: quick males and social females	7
Bold and bright: shy and supple? The effect of habitat type on personality–cognition covariance in the Aegean wall lizard (Podarcis erhardii)	7

Count-based decision-making in mice: numerosity vs. stimulus control	7
Quantity discrimination by kittens of the domestic cat (Felis silvestris catus)	7
Meowing dogs: can dogs recognize cats in a cross-modal violation of expectancy task (Canis familiaris)?	7
Domestication effects on social information transfer in chickens	7
Repeated testing does not confound cognitive performance in the Western Australian magpie (Cracticus tibicen dorsalis)	7
Juvenile vervet monkeys rely on others when responding to danger	7
Gender differences in animal cognition science	7
Visual categories and concepts in the avian brain	7
Assessing the performance of brushtail possums (Trichosurus vulpecula) on the Mechner counting procedure	7
Adjustment in the point-following behaviour of free-ranging dogs – roles of social petting and informative-deceptive nature of cues	6
Effects of predation risk on the sensory asymmetries and defensive strategies of Bufotes balearicus tadpoles	6
Correction: Do chimpanzees see a face on Mars? A search for face pareidolia in chimpanzees	6
Interspecific differences in developmental mode determine early cognitive abilities in teleost fish	6
Grey wolves (Canis lupus) discriminate between familiar and unfamiliar human voices	6
Does quantity matter to a stingless bee?	6
Horses form cross-modal representations of adults and children	6
Object use in communication of semi-wild chimpanzees	6
Oscillatory extraction behaviour suggests functional attributes of crows’ hooked-stick tools	6
Innovative problem-solving in a small, wild canid	6
Two-action task, testing imitative social learning in kea (Nestor notabilis)	6
No evidence of spatial representation of age, but “own-age bias” like face processing found in chimpanzees	6
When should we ascribe sentience to animals? A commentary on “Hermit crabs, shells and sentience” (Elwood 2022)	6
Orcas remember what to copy: a deferred and interference-resistant imitation study	6
Active oscillations in microscale navigation	6
Context-effect bias in capuchin monkeys (Sapajus spp.): exploring decoy influences in a value-based food choice task	6
Breed group differences in the unsolvable problem task: herding dogs prefer their owner, while solitary hunting dogs seek stranger proximity	6
Color is necessary for face discrimination in the Northern paper wasp, Polistes fuscatus	6
Operant conditioning in antlion larvae and its impairment following exposure to elevated temperatures	5
Prior experience modifies acquisition trajectories via response–strategy sampling	5
The current state of carnivore cognition	5
Vocal signals with different social or non-social contexts in two wild rodent species (Mus caroli and Rattus losea)	5
Nest size matters: common cuckoos prefer to parasitize larger nests of Oriental reed warblers	5
Perceptual grouping and detection of trial-unique emergent structures by pigeons	5
The influence of visual illusion perception on numerosity estimation could be evolutionarily conserved: exploring the numerical Delboeuf illusion in humans (Homo sapiens) and fish (Poecilia reticulata	5
Why wait to mark? Possible reasons behind latency from olfactory exploration to overmarking in four African equid species	5
Social cognition and metacognition in great apes: a theory	5
An investigation on the olfactory capabilities of domestic dogs (Canis lupus familiaris)	5
No coordination required for resources allocation during colony fission in a social insect? An individual-based model reproduces empirical patterns	5
Mirror image stimulation could reverse social-isolation-induced aggressiveness in the high-level subsocial lactating spider	5
Mice make temporal inferences about novel locations based on previously learned spatiotemporal contingencies	5
Mother–pup recognition mechanisms in Australia sea lion (Neophoca cinerea) using uni- and multi-modal approaches	5
Recovery-from-extinction effects in an anuran amphibian: renewal effect, but no reinstatement	5
Star finches Neochmia ruficauda have a visual preference for white dot patterns: a possible case of trypophilia	5
What is it like to be a choanoflagellate? Sensation, processing and behavior in the closest unicellular relatives of animals	5
A small step for rats alters spatial behavior: rats on a bi-level arena explore each level separately	5
First acoustic evidence of signature whistle production by spinner dolphins (Stenella longirostris)	5
Geckos differentiate self from other using both skin and faecal chemicals: evidence towards self-recognition?	5
Stepwise learning of compound multidimensional visual stimuli by sorting out the dimensions of which they are composed in pigeons	5
Context-dependent and seasonal fluctuation in bottlenose dolphin (Tursiops truncatus) vocalizations	4
The use of an intermittent schedule of reinforcement to evaluate detection dogs’ generalization from smokeless-powder	4
Azure-winged Magpies would rather avoid losses than strive for benefits based on reciprocal altruism	4
Animal cognition, past present and future, a 25th anniversary special issue	4
Structural environmental enrichment and the way it is offered influence cognitive judgement bias and anxiety-like behaviours in zebrafish	4
A comparison of personality traits of gifted word learner and typical border collies	4
Does social motivation mitigate fear caused by a sudden sound in horses?	4
On the role of training in delay of gratification paradigms: a reply to Pepperberg 2022	4
Why an animal needs a brain	4
Detecting surface changes in a familiar tune: exploring pitch, tempo and timbre	4
Zebrafish excel in number discrimination under an operant conditioning paradigm	4
Searching for nothing: placing zero on the temporal continuum	4
Come with me: experimental evidence for intentional recruitment in Tonkean macaques	4
Navigational roots of spatial and temporal memory structure	4
Well-developed spatial reversal learning abilities in harbor seals (Phoca vitulina)	4
Use of anvils by the Great Kiskadee (Aves, Tyrannidae): a description based on citizen science data	4
“The song remains the same”: not really! Vocal flexibility in the song of the indris	4
Use of the sun compass by monocularly occluded homing pigeons in a food localisation task in an outdoor arena	4
Heterospecific eavesdropping on disturbance cues of a treefrog	4
Fish self-awareness: limits of current knowledge and theoretical expectations	4
Spontaneous object recognition in capuchin monkeys: assessing the effects of sex, familiarization phase and retention delay	4
Under pressure: the interaction between high-stakes contexts and individual differences in decision-making in humans and non-human species	4
Congratulations to Animal Cognition on its 50th birthday! Some thoughts on the last 50 years of animal cognition research	4
Stressfulness of the design influences consistency of cognitive measures and their correlation with animal personality traits in wild mice (Mus musculus)	4
Intentional gestural communication amongst red-capped mangabeys (Cercocebus torquatus)	4
Llamas use social information from conspecifics and humans to solve a spatial detour task	4
Bioelectric networks: the cognitive glue enabling evolutionary scaling from physiology to mind	4
Language preference in the domestic dog (Canis familiaris)	4