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

