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 2021-03-01 to 2025-03-01.)

Article	Citations
Sexual differences in responses of meadow voles to environmental cues in the presence of mink odor	34
Incrementing non-matching- but not matching-to-sample is rapidly learned in an automated version of the odor span task	28
Putting the cart before the horse: claims for mirror self-recognition in horses are unfounded	24
Mirror self-recognition in ghost crab (Ocypode quadrata)	22
Pet dogs (Canis familiaris) re-engage humans after joint activity	22
Prosociality and reciprocity in bottlenose dolphins (Tursiops truncatus)	20
Dogs (Canis lupus familiaris) are susceptible to the Kanizsa’s triangle illusion	19
A kestrel without hooked beak and talons is not a kestrel for the red-backed shrike (Lanius collurio)	19
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
The effect of dimensional reinforcement prediction on discrimination of compound visual stimuli by pigeons	18
Cowards or clever guys: an alternative nest defence strategy employed by shrikes against magpies	17
Effects of oxytocin administration and the dog–owner bond on dogs’ rescue behavior	16
Visual snake aversion in Octodon degus and C57BL/6 mice	16
Overlooked evidence for semantic compositionality and signal reduction in wild chimpanzees (Pan troglodytes)	15
Searching high and low: domestic dogs’ understanding of solidity	15
Innovative problem-solving in a threatened gull species, the Olrog’s Gull (Larus atlanticus)	15
Spaced training enhances equine learning performance	15
Seasonal changes in problem-solving in wild African striped mice	15
Quantitative abilities of invertebrates: a methodological review	15
Individual differences in co-representation in three monkey species (Callithrix jacchus, Sapajus apella and Macaca tonkeana) in the joint Simon task: the role of social factors and inhibitory control	14
Detecting surface changes in a familiar tune: exploring pitch, tempo and timbre	14
Context-dependent and seasonal fluctuation in bottlenose dolphin (Tursiops truncatus) vocalizations	14
Disentangling help-seeking and giving up: differential human-directed gazing by dogs in a modified unsolvable task paradigm	14
Intentional gestural communication amongst red-capped mangabeys (Cercocebus torquatus)	14
Nest sanitation as an effective defence against brood parasitism	13

House sparrows use learned information selectively based on whether reward is hidden or visible	13
Exploratory decisions of Trinidadian guppies when uncertain about predation risk	13
Correction to: If horses had toes: demonstrating mirror self recognition at group level in Equus caballus	13
Learning to anticipate mate presence shapes individual sex roles in the hermaphroditic pond snail, Lymnaea stagnalis	13
Assessing the performance of brushtail possums (Trichosurus vulpecula) on the Mechner counting procedure	13
Understanding across the senses: cross-modal studies of cognition in cetaceans	12
Thinking about order: a review of common processing of magnitude and learned orders in animals	12
Language preference in the domestic dog (Canis familiaris)	12
Second verse, same as the first: learning generalizable relational concepts through functional repetition	12
Innovative problem-solving in a small, wild canid	12
“Cognition in marine mammals: the strength of flexibility in adapting to marine life”	11
Behavioral laterality is correlated with problem-solving performance in a songbird	11
Life is in motion (through a chick’s eye)	11
Puppies in the problem-solving paradigm: quick males and social females	10
Context-effect bias in capuchin monkeys (Sapajus spp.): exploring decoy influences in a value-based food choice task	10
Taste aversion learning in the snail Cornu aspersum	10
Does owner handedness influence paw preference in dogs?	10
Linguistic laws of brevity: conformity in Indri indri	9
Canine perspective-taking	9
Contagious yawning in African painted dogs	9
Meowing dogs: can dogs recognize cats in a cross-modal violation of expectancy task (Canis familiaris)?	9
Assessment of predation risk through conspecific cues by anuran larvae	9
Why an animal needs a brain	9
Response of the weeping lizard to distress calls: the effect of witnessing predation	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
“The song remains the same”: not really! Vocal flexibility in the song of the indris	9
Active oscillations in microscale navigation	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
Appeasement function of displacement behaviours? Dogs’ behavioural displays exhibited towards threatening and neutral humans	9
Interspecific differences in developmental mode determine early cognitive abilities in teleost fish	9
Use of the sun compass by monocularly occluded homing pigeons in a food localisation task in an outdoor arena	9
Orientation by environmental geometry and feature cues in the green and black poison frog (Dendrobates auratus)	8
A review of the unsolvable task in dog communication and cognition: comparing different methodologies	8
Neural substrates involved in the cognitive information processing in teleost fish	8
Adding colour-realistic video images to audio playbacks increases stimulus engagement but does not enhance vocal learning in zebra finches	8
Domestic dogs (Canis lupus familiaris) are sensitive to the correlation between pitch and timbre in human speech	8
Equal performance but distinct behaviors: sex differences in a novel object recognition task and spatial maze in a highly social cichlid fish	8
I know a dog when I see one: dogs (Canis familiaris) recognize dogs from videos	8
Learning about construction behaviour from observing an artefact: can experience with conspecifics aid in artefact recognition?	8
Adjustment in the point-following behaviour of free-ranging dogs – roles of social petting and informative-deceptive nature of cues	8
Fish self-awareness: limits of current knowledge and theoretical expectations	8
Context-dependent use of olfactory cues by foragers of Vespula germanica social wasps	8
Emergence of complex dynamics of choice due to repeated exposures to extinction learning	8
An initial exploration of mirror behaviour in the ferret, Mustela putorius furo	8
Is this love? Sex differences in dog-owner attachment behavior suggest similarities with adult human bonds	8
Digital embryos: a novel technical approach to investigate perceptual categorization in pigeons (Columba livia) using machine learning	8
Group size, partner choice and collaborative actions in male Indo-Pacific bottlenose dolphins (Tursiops aduncus)	8
From representations to servomechanisms to oscillators: my journey in the study of cognition	7
Correction: Discrimination of cat-directed speech from human-directed speech in a population of indoor companion cats (Felis catus)	7
Host parent responses to heterospecific parasite nestling alarm calls are independent of past and current experience with experimental brood parasitism	7

Individual recognition and long-term memory of inanimate interactive agents and humans in dogs	7
An intentional cohesion call in male chimpanzees of Budongo Forest	7
Zebrafish excel in number discrimination under an operant conditioning paradigm	7
Serial visual reversal learning in harbor seals (Phoca vitulina)	7
Observing the nature of relationships in male bottlenose dolphins	7
Development of the dog executive function scale (DEFS) for adult dogs	7
Degraded and computer-generated speech processing in a bonobo	7
Mutual mother–pup vocal recognition in the highly colonial Cape fur seal: evidence of discrimination of calls with a high acoustic similarity	7
The use of an intermittent schedule of reinforcement to evaluate detection dogs’ generalization from smokeless-powder	7
Playing it by ear: gregarious sparrows recognize and respond to isolated wingbeat sounds and predator-based cues	7
Heterospecific eavesdropping on disturbance cues of a treefrog	7
Testing use of the first multi-partner cognitive enrichment devices by a group of male bottlenose dolphins	7
Behavioral evidence for two distinct memory systems in rats	7
Evidence of successive negative contrast in terrestrial toads (Rhinella arenarum): central or peripheral effect?	7
When should we ascribe sentience to animals? A commentary on “Hermit crabs, shells and sentience” (Elwood 2022)	7