Results 71 to 80 of about 5,662 (194)

Correlative scanning and transmission electron microscopic study on the ependymal surface of Cebus apella

open access: yesArquivos de Neuro-Psiquiatria, 1986
Topographical variations of the ependymal surface of the whole brain ventricular system of Cebus apella, a wild Brazilian species, were studied at the scanning electron microscope after C02 critical point drying and carbon-gold coating.
Cáudio A. Ferraz de Carvalho   +2 more
doaj   +1 more source

Mechanical isolation of capuchin monkey (Cebus apella) preantral ovarian follicles

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2003
The aim of this study was to adapt a mechanical procedure for the isolation of intact preantral follicles from Cebus apella ovaries. The interval effect of serial sections of the tissue chopper was tested on a number of preantral follicles isolated from ...
S.F.S. Domingues   +6 more
doaj   +1 more source

Abstract knowledge in the broken-string problem : evidence from nonhuman primates and pre-schoolers [PDF]

open access: yes, 2014
There was funding from the Royal Commission for the Exhibition of 1851.There is still large controversy about whether abstract knowledge of physical problems is uniquely human.
Josep Call   +26 more
core   +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

Padrões hematológicos em Cebus apella, anestesiados com quetamina

open access: yes, 1999
Blood samples were collected from 124 captive Capuchin monkeys (Cebus apella) at Fundação Parque Zoológico de São Paulo, anesthetized with ketamine (10 mg/kg, IM).
LARSSON Jr, Carlos Eduardo   +10 more
core   +1 more source

ÁREAS CEREBRAIS DO MACACO PREGO (Cebus apella Linnaeus, 1766)

open access: yesArquivos de Ciências da Saúde da UNIPAR, 2017
O Cebus apella é uma espécie protegida por lei, contribui para a manutenção dos ecossistemas florestais com comportamento social semelhante aos humanos.
Fernando Vagner Lobo Ladd   +3 more
doaj   +1 more source

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

Presença de anticorpos da classe IgM de Leptospira interrogans em animais silvestres do Estado do Tocantins, 2002 Presence of IgM antibodies for Leptospira interrogans in wild animals from Tocantins State, 2002

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2006
Quatrocentos e vinte e sete amostras de soro provenientes de animais silvestres foram testadas frente a 18 sorovariedades de Leptospira interrogans. De 286 amostras de Cebus apella, 46 (16,1%) foram positivas para as sorovariedades pomona, brasiliensis ...
Milton Formiga de Souza Júnior   +7 more
doaj   +1 more source

Close encounters of the friendly kind: pacific between‐group interactions in primates

open access: yesBiological Reviews, Volume 100, Issue 6, Page 2257-2284, December 2025.
ABSTRACT While intergroup conflict features prominently in the behavioural ecology literature, its antonym, intergroup peace, has been a rather neglected phenomenon until recently. Neighbourly relations and affiliative interactions are far from uncommon.
Cyril C. Grueter, Luca Pozzi
wiley   +1 more source

Inhibitory control tests in non‐human animals: validity, reliability, and perspectives

open access: yesBiological Reviews, Volume 100, Issue 6, Page 2482-2507, December 2025.
ABSTRACT Inhibitory control, the ability to control impulsive or pre‐learned behaviour in order to reach a more rewarding goal, is essential in many aspects of normal life. In non‐human animals, better inhibitory control performances have been associated with a larger brain, better problem‐solving skills, and fitness benefits.
Louise Loyant, Luke Collins, Marine Joly
wiley   +1 more source

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