Results 41 to 50 of about 7,798 (215)

A imunomarcação positiva para c-kit está associada com a presença de células análogas às intersticiais de Cajal no músculo ciliar? [PDF]

open access: yes, 2009
PURPOSE: Interstitial cells of Cajal were identified in the gastrointestinal tract of several species, with close relation to the enteric nervous system.
GARCIA, Sérgio Britto   +4 more
core   +2 more sources

Coping strategies in captive capuchin monkeys (Sapajus spp.) [PDF]

open access: yes, 2016
Studies on diverse species indicate the existence of individual differences in stress coping strategies labelled as ‘proactive’ and ‘reactive’. Identifying taxonomic distribution of such coping strategies is fundamental to evolutionary models and to ...
Aruajo, Talita   +5 more
core   +2 more sources

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

open access: yesThe Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani   +3 more
wiley   +1 more source

Comparing the cost-effectiveness of methods for estimating population density for primates in the Amazon rainforest Peru [PDF]

open access: yes, 2015
With increasingly extreme fluctuations in flood levels in the Amazon basin (Malhi et al. 2008, Marengo et al. 2012, Bodmer et al. 2014) the future of its' fauna is becoming more uncertain.
Bowles, Matthew David
core  

Estudo anatômico comparativo dos nervos da perna de Cebus (macaco-prego) com babuínos, chimpanzés e humanos modernos [PDF]

open access: yes, 2012
Os estudos anatômicos comparativos entre os primatas são importantes para pesquisas associadas com a etologia, evolução, taxonomia e compreensão dos usos de ferramentas pelos hominídeos.
Abreu, Tainá de   +6 more
core   +4 more sources

The flexible, the stereotyped and the in‐between: putting together the combinatory tool use origins hypothesis

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1235-1254, June 2026.
ABSTRACT Tool use research has long made the distinction between tool using that is considered learned and flexible, and that which appears to be instinctive and stereotyped. However, animals with an inherited tool use specialisation can exhibit flexibility, while tool use that is spontaneously innovated can be limited in its expression and facilitated
Jennifer A. D. Colbourne   +1 more
wiley   +1 more source

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

Individual differences in zoo-housed squirrel monkeys’ (Saimiri sciureus) reactions to visitors, research participation, and personality ratings [PDF]

open access: yes, 2017
Understanding individual differences in captive squirrel monkeys is a topic of importance both for improving welfare by catering to individual needs, and for better understanding the results and implications of behavioral research.
Anderson   +38 more
core   +3 more sources

PriMath—The Role of Intrinsic Factors in Quantitative Cognitive Performance of Highly Social Primates

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
Our study investigated the quantity discrimination ability in a highly social group of New World monkeys, with the goal of understanding how individual differences in performance due to group composition might be explained from an evolutionary perspective.
Kata Anna Bán   +5 more
wiley   +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

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