Results 51 to 60 of about 1,341 (202)

Primate community of the tropical rain forests of Saracá-Taqüera National Forest, Pará, Brazil

Brazilian Journal of Biology
Brazil is the richest country in the world in terms of primate species and the Amazonian rain forest is one of the richest biomes containing 15 (ca. 90%) of the Neotropical primate genera.
LC. Oliveira, D. Loretto, LR. Viana, JS. Silva-Jr., W. G. Fernandes   +4 more
doaj   +1 more source

Genetic variability in two captive colonies of Cebus apella paraguayanus (primates: platyrrhini) from eastern Paraguay [PDF]

Caryologia, 2004
The tufted capuchin, Cebus apella is a New World Monkey (NWM) species widely used in biomedicine. Its genetic variability has been assessed through various genetic tools. The present study offers a cytogenetic charac- terization of two captive colonies of Paraguayan specimens, in order to increase the current information on the role of cytogenetic ...
R. Martinez, E. Torres, M. Nieves, V. Szapkievich, S. Rodríguez, A. Schinini, M. Ascurra, Marta D. Mudry   +7 more
openaire   +1 more source

Contexts of Anointing Behavior in a Group of Blond Capuchin Monkeys (Sapajus flavius) Inhabiting an Atlantic Forest Fragment

American Journal of Primatology, Volume 88, Issue 1, January 2026.
Wild blond capuchin anoints with millipede species that secrete a chemical capable of repelling ectoparasites, suggesting a self‐medicative function. Social and solitary anointing bouts occurred at similar frequencies, but with greater engagement by adult males, indicating that anointing is a multifunctional behavior.
Ana Paula de Brito‐Araújo, Natsumi Hamada‐Fearnside, Simone Peruzzo, Italo Ferreira Pereira, Poliana Gabriele Alves de Souza Lins, Kyle Miller, Patrícia Elesbão da Silva Rodrigues, Luiz Felipe Moretti Iniesta, Renata Gonçalves Ferreira   +8 more
wiley   +1 more source

Bonobos extract meaning from call sequences [PDF]

, 2013
This research was funded by a Leverhulme Trust Research Leadership Award and the Wissenschaftskolleg zu Berlin. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Studies on ...
Clay, Zanna, Zuberbuehler, Klaus
core   +1 more source

The prefrontal areas and cerebral hemispheres of the neotropical Cebus apella and their correlations with cognitive processes

Dementia & Neuropsychologia
The organization of the prefrontal cortex can hold important clues to understanding its functioning. The Cebus apella present cerebral particularities and behavioral and cognitive flexibility, possessing abilities that demonstrate an overlap with those ...
Kellen Christina Malheiros Borges, Jussara Rocha Ferreira, Leonardo Ferreira Caixeta   +2 more
doaj   +1 more source

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

Movement 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, Haruo Nishijima, Fumiaki Mori, Iku Kinoshita, Chieko Suzuki, Koichi Wakabayashi, Masahiko Tomiyama   +6 more
wiley   +1 more source

Pioneer study for determination of cytohematological standard os primate bone marrow Cebus Apella [PDF]

, 2020
Universidade Federal do Pará (UFPA); Fundação Amazônia de Amparo a Estudos e Pesquisas (FAPESPA)Universidade Federal do Pará. Instituto de Ciências Biológicas. Laboratório de Patologia Geral - Imunopatologia e Citologia.
Brito Junior, Lacy Cardoso de, Feio, Danielle Cristinne Azevedo, Avelino, Maria Eduarda de Sousa, Muniz, José Augusto Pereira Carneiro   +3 more
core  

Chronic myocardial damage in experimental T. cruzi infection of a new world primate, Cebus sp. monkey Lesões miocárdicas crônicas na infecção experimental pelo T. cruzi no macaco (Cebus apella)

Revista do Instituto de Medicina Tropical de São Paulo, 1990
Eighteen Cebus apella monkeys, (juvenile and adult of both sexes) were inoculated five years ago, with three Trypanosoma cruzi strains (CA1, n = 10; Colombian, n=4 and Tulahuen, n=4), either by conjunctival or intraperitoneal route, once or repeatedly ...
Carlos Alberto Falasca, Monica Gili, Daniel Grana, Elena Gomez, Jorge Zoppi, Eduardo Mareso   +5 more
doaj   +1 more source

Anatomic study of the hippocampus in a primate species of the Amazon Cebus apella (Linnaeus, 1812) [PDF]

, 2010
The nonhuman primates constitute irreplaceable animal models for research areas in which their close evolutionary relationship to humans ensures high fidelity models with predictive and discriminative abilities that may not be available in other species.
Torres, Laila Brito [UNIFESP]
core  

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

Ecology 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, Guillam E. McIvor, Dominic L. Cram   +2 more
wiley   +1 more source