Results 31 to 40 of about 2,790 (211)

Cebus apella (Primata: Cebidae) as a new host for Fonsecalges johnjadini (Acari: Psoroptidae, Cebalginae) with a description of anatomopathological aspects

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
Mites collected from the auditory canal of Cebus apella (capuchin monkey), family Cebidae, were identified as Fonsecalges johnjadini (Psoroptidae, Cebalginae). It is the first record of this parasite from this monkey. This paper emphasizes the importance
Luciana Guerim   +4 more
doaj   +1 more source

The stone tools of capuchins (Cebus apella) [PDF]

open access: yesInternational Journal of Primatology, 1995
We examined the production of stone took by capuchins (Cebus apella). Eleven subjects used five reduction techniques to produce 346 stone tools (48 cores and 298 flakes). They produced a sharp edge on 83% of the cores and largest flakes. Three monkeys later used a sample of these objects as cutting tools.
Gregory Charles Westergaard   +1 more
openaire   +1 more source

The effect of dietary adaption on cranial morphological integration in capuchins (order Primates, genus Cebus).

open access: yesPLoS ONE, 2012
A fundamental challenge of morphology is to identify the underlying evolutionary and developmental mechanisms leading to correlated phenotypic characters.
Jana Makedonska   +2 more
doaj   +1 more source

Morphological Changes in Direct Pathway Striatal Neurons in a Rat Model of Tardive Dyskinesia

open access: yesMovement Disorders, Volume 41, Issue 1, Page 234-240, January 2026.
Abstract Background Tardive dyskinesia (TD) and drug‐induced parkinsonism (DIP) arise from prolonged dopamine antagonist use. Although D2 receptor hypersensitivity in the indirect pathway is a proposed mechanism, the role of the direct pathway remains unclear.
Hiroki Hikichi   +6 more
wiley   +1 more source

Phylogenetic studies of the genus Cebus (Cebidae-Primates) using chromosome painting and G-banding

open access: yesBMC Evolutionary Biology, 2008
Background Chromosomal painting, using whole chromosome probes from humans and Saguinus oedipus, was used to establish karyotypic divergence among species of the genus Cebus, including C. olivaceus, C. albifrons, C. apella robustus and C.
Pissinatti A   +5 more
doaj   +1 more source

Health Correlates of Extended Longevity in Captive Ring‐Tailed Lemurs (Lemur catta)

open access: yesAmerican Journal of Primatology, Volume 87, Issue 12, December 2025.
Male and female ring‐tailed lemurs exhibit distinct patterns of age‐related change in certain serum chemistry markers. Photo by David Haring. ABSTRACT Captive primates maintained at accredited institutions can live extraordinarily long lives and, as a result, are useful models for understanding the physiology of aging. Many institutions monitor primate
Ruby L. Mustill   +4 more
wiley   +1 more source

SCANNING ELECTRON MICROSCOPIC INVESTIGATION OF DENTINAL TUBULES IN MONKEY DENTIN SCANNING ELECTRON MICROSCOPIC INVESTIGATION OF DENTINAL TUBULES IN Cebus apella DENTIN

open access: yesCiência Animal Brasileira, 2009
<div>The aim of the study was to investigate the number and diameter of the Cebus apella dentinal tubules. The roots of the Cebus apella teeth were examined in specific tooth locations: the apical, middle and cervical dentin.
João Humberto Antoniazzi   +5 more
doaj  

An Observation of Coordinated Collaboration in Wild Brown Skua (Stercorarius antarcticus)

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
We present the first video evidence of cooperative food processing in wild brown skuas (Stercorarius antarcticus) on the Antarctic Peninsula. Our observations show that pairs coordinated their actions over space and time, consistent with actively coordinated collaboration.
George J. F. Swan   +2 more
wiley   +1 more source

Nuevos parásitos de primates para la Argentina

open access: yesActa Zoológica Lilloana, 1979
Los autores reportan el hallazgo en los primates CAPRIM (Centro Argentino de Primates), de algunos parásitos aún no reportados, en Argentina. Trypanoxyuris interlabiata (Sandosham, 1950) (Nematoda, Oxyuridae), hospedador: Aotus trivirgatus. Oochoristica
R. A. Moriena   +2 more
doaj  

Valores de referência das provas de funções hepática, renal e de alguns eletrólitos em Cebus apella, anestesiados com cetamina Serum biochemical profile of healthy Cebus apella, anesthetized with ketamine

open access: yesCiência Rural, 1997
Foram analisadas 127 amostras de soro sangüíneo, obtidas de macacos-prego (Cebus apella), anestesiados com cetamina. Quantificaram-se as provas de função hepática (proteínas totais, albumina, glicose, bilirrubinas e atividade enzimática de ALT, AST e ALP)
Maria Helena Matiko Akao Larsson   +5 more
doaj   +1 more source

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