Results 91 to 100 of about 8,185 (217)

Short‐Term Puzzle Feeder Enrichment Increases Food Engagement but Not Stress‐Related Behaviour in Captive Golden‐Headed Lion Tamarins

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
Food puzzles significantly increased food engagement time in captive golden‐headed lion tamarins (Leontopithecus chrysomelas), with individuals spending three times longer foraging compared to standard food bowls. Grooming and activity levels showed no short‐term changes, though patterns varied across enclosures. These findings highlight puzzle feeders
Giulia Pipolo   +4 more
wiley   +1 more source

A phylogenomic perspective on the robust capuchin monkey (Sapajus) radiation : first evidence for extensive population admixture across South America [PDF]

open access: yes, 2018
Phylogenetic relationships amongst the robust capuchin monkeys (genus Sapajus) are poorly understood. Morphology-based taxonomies have recognized anywhere from one to twelve different species.
Aleixo, A   +11 more
core   +1 more source

PriMath—The Role of Intrinsic Factors in Quantitative Cognitive Performance of Highly Social Primates

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
Our study investigated the quantity discrimination ability in a highly social group of New World monkeys, with the goal of understanding how individual differences in performance due to group composition might be explained from an evolutionary perspective.
Kata Anna Bán   +5 more
wiley   +1 more source

Anatomical and radiographic appearance of the capuchin monkey thoracic cavity (Cebus apella) Aparência anatômica e radiográfica da cavidade torácica do macaco-prego (Cebus apella)

open access: yesPesquisa Veterinária Brasileira, 2012
The capuchin monkey is widespread both north and south of the Legal Amazon and in the Brazilian cerrado. Ten clinically healthy capuchin monkeys were submitted to an anatomical and radiographic study of their thoracic cavities.
Flávio R. Alves   +6 more
doaj  

Methodological considerations in the analysis of fecal glucocorticoid metabolites in tufted capuchins (Cebus apella) [PDF]

open access: yes, 2013
Analysis of fecal glucocorticoid (GC) metabolites has recently become the standard method to monitor adrenocortical activity in primates noninvasively. However, given variation in the production, metabolism, and excretion of GCs across species and even ...
A Engelhardt   +66 more
core   +2 more sources

Tail-use in capuchin monkeys

open access: yesNeotropical Primates, 1999
No ...
openaire   +1 more source

Exploring the Neural Substrates of Number Sense: A Perspective on Genetics, Behaviour and Neural Circuity

open access: yesEuropean Journal of Neuroscience, Volume 63, Issue 8, April 2026.
Numerical cognition arises from conserved mechanisms linking genes, neural circuits and behaviour. Using zebrafish as a tractable model, behavioural assays, whole‐brain imaging and genetic analyses can be integrated to identify neural and molecular bases of quantity discrimination. This framework provides a platform for studying numerical cognition and
Mirko Zanon   +3 more
wiley   +1 more source

Variation in glucocorticoid levels: survival and reproductive demands in wild black capuchins (Sapajus nigritus)

open access: yesInternational Journal of Psychological Research, 2016
According to the concept of allostasis and its association with energy mobilization, glucocorticoids (GCs) should parallel cumulative energy expenditure for animal survival and reproduction. Therefore, it is expected that seasonal food shortages might
Caio M. Moreira   +3 more
doaj   +1 more source

Morgan's canon, Garner's phonograph, and the evolutionary origins of language and reason [PDF]

open access: yes, 2000
`Morgan's canon' is a rule for making inferences from animal behaviour about animal minds, proposed in 1892 by the Bristol geologist and zoologist C. Lloyd Morgan, and celebrated for promoting scepticism about the reasoning powers of animals.
Radick, G.
core   +1 more source

Analysis of the Bile of the Capuchin Monkey

open access: yesExperimental Biology and Medicine, 1940
Studies in this laboratory in recent years have been concerned with the hydrogenion concentration of the bile of the guinea pig1 and dog2 with respect to the dissolution of human gall stones. Having available a series of Capuchin monkeys (Cebus fatuellus) upon which metabolism studies had been conducted, it was deemed of interest to study the bile of ...
openaire   +1 more source

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