Results 1 to 10 of about 2,445 (156)

Stone tools differences across three capuchin monkey populations: food’s physical properties, ecology, and culture [PDF]

open access: yesScientific Reports, 2022
Robust capuchin monkeys (Sapajus) are known for processing mechanically challenging foods, having morphological adaptations to do so. However, several populations go beyond body limitations by using stone tools to expand their food range.
Tiago Falótico   +3 more
doaj   +2 more sources

A novel nonsense mutation in the tyrosinase gene is related to the albinism in a capuchin monkey (Sapajus apella) [PDF]

open access: yesBMC Genetics, 2017
Background Oculocutaneous Albinism (OCA) is an autosomal recessive inherited condition that affects the pigmentation of eyes, hair and skin. The OCA phenotype may be caused by mutations in the tyrosinase gene (TYR), which expresses the tyrosinase enzyme ...
Felipe Tadeu Galante Rocha de Vasconcelos   +10 more
doaj   +2 more sources

Color discrimination in the tufted capuchin monkey, Sapajus spp. [PDF]

open access: yesPLoS ONE, 2013
The present study evaluated the efficacy of an adapted version of the Mollon-Reffin test for the behavioral investigation of color vision in capuchin monkeys.
Paulo Roney Kilpp Goulart   +4 more
doaj   +2 more sources

Nut-cracking success and efficiency in two wild capuchin monkey populations [PDF]

open access: yesRoyal Society Open Science
Capuchins can employ several strategies to deal with environmental challenges, such as using stone tools to access encapsulated resources. Nut-cracking is customary in several capuchin populations and can be affected by ecological and cultural factors ...
Tiago Falótico   +4 more
doaj   +2 more sources

Anatomical analysis of thumb opponency movement in the capuchin monkey (Sapajus sp). [PDF]

open access: yesPLoS ONE, 2014
Capuchin monkeys present a wide variety of manipulatory skills and make routine use of tools both in captivity and in the wild. Efficient handling of objects in this genus has led several investigators to assume near-human thumb movements despite the ...
Roqueline A G M F Aversi-Ferreira   +7 more
doaj   +2 more sources

Claustrum projections to prefrontal cortex in the capuchin monkey, Cebus apella. [PDF]

open access: yesFrontiers in Systems Neuroscience, 2014
We examined the pattern of retrograde tracer distribution in the claustrum following intracortical injections into the frontal pole (area 10), dorsal (area 9), and ventral lateral (area 12) regions of the rostral prefrontal cortex in the tufted capuchin ...
David H. Reser   +10 more
doaj   +2 more sources

Bearded capuchin monkeys as a model for Alzheimer’s disease [PDF]

open access: yesScientific Reports
The absence of a natural animal model is one of the main challenges in Alzheimer’s disease research. Despite the challenges of using nonhuman primates in studies, these animals can bridge mouse models and humans, as nonhuman primates are phylogenetically
Roberta Diehl Rodriguez   +10 more
doaj   +2 more sources

Fairly flexible: brown-tufted capuchins and a squirrel monkey adjust their motor responses in a foraging task [PDF]

open access: yesPeerJ
Prior research on non-human primates has produced contradictory results regarding behavioral flexibility and habit formation. Most observational studies of wild primates show flexibility in foraging behavior, whereas experimental data suggest captive ...
Renee C. Russell   +3 more
doaj   +3 more sources

Fecal bacterial communities of wild black capuchin monkeys (Sapajus nigritus) from the Atlantic Forest biome in Southern Brazil are divergent from those of other non-human primates

open access: yesCurrent Research in Microbial Sciences, 2021
Gut microbiota are influenced by factors such as diet, habitat, and social contact, which directly affect the host's health. Studies related to gut microbiota in non-human primates are increasing worldwide.
Tiela Trapp Grassotti   +9 more
doaj   +1 more source

Follicular Atresia, Cell Proliferation, and Anti-Mullerian Hormone in Two Neotropical Primates (Aotus nancymae and Sapajus macrocephalus)

open access: yesAnimals, 2023
This study evaluated the follicular atresia, cell proliferation, and anti-Mullerian hormone action in Aotus nancymae and Sapajus macrocephalus during three sexual phases (follicular, luteal, and gestational).
Deise de Lima Cardoso   +5 more
doaj   +1 more source

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