Results 161 to 170 of about 1,510 (197)

The meiotic chromosomes of Cebus apella (Cebidae, Platyrrhini)

Cytogenetics and Cell Genetics, 2008
An analysis of the meiotic chromosomes of Cebus apella (Cebidae, Platyrrhini) has allowed for the visualization of constitutive heterochromatic regions throughout the meiotic cycle and has permitted the identification of four chromosomes in the first and the second divisions.
H N, Seuánez, J L, Armada, C, Barroso, C, Rezende, V F, da Silva   +4 more
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Quantification of enamel decussation in gracile and robust capuchins (Cebus, Sapajus, Cebidae, Platyrrhini)

American Journal of Primatology, 2021
Multiple behavioral and biomechanical analyses have demonstrated that capuchin monkeys (Cebus and Sapajus) are specialized for breaking down hard‐object foods as compared to other cebid monkeys. In addition to a complex suite of craniodental adaptations,
Russell T Hogg, Abdallah Elokda
semanticscholar   +1 more source

Cebidae

2013
Russell A. Mittermeier, Anthony B. Rylands, Don E. Wilson (2013): Cebidae. In: Handbook of the Mammals of the World – Volume 3 Primates.
Russell A. Mittermeier, Anthony B. Rylands, Don E. Wilson   +2 more
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Revalidation of Saguinus ursula Hoffmannsegg (Primates: Cebidae: Callitrichinae)

Zootaxa, 2013
In this study, we review the taxonomy of Saguinus niger (É. Geoffroy) and revalidate Saguinus ursula Hoffmannsegg as a distinct species. The revalidation is based on pelage coloration, and the pattern of morphological divergence is corroborated by molecular data. Samples from the east bank of the Tocantins River (S.
Gregorin, Renato, De Vivo, Mario
openaire   +4 more sources

SRY Evolution in Cebidae (Platyrrhini: Primates)

Journal of Molecular Evolution, 2002
Sex determination in mammals is dependent on the presence of SRY, which codes for a protein with a DNA binding motif (the HMG-box domain). Here we analyze the evolution of SRY among seven genera of New World monkeys belonging to the family Cebidae. Estimates of the number of synonymous and nonsynonymous substitutions indicated the absence of positive ...
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Preliminary Observations of Cebus nigrivittatus (Primates: Cebidae) on the Venezuelan Llanos

Folia Primatologica, 1973
Brief observations were made of Cebus nigrivittatus in a dry forest on the Venezuelan llanos. Data were obtained on the social behavior of one troop of 33 individuals, which included 4 adult males and 8 adult females. Eleven vocal and seven visual displays were noted and the associations between them were analyzed.
J R, Oppenheimer, E C, Oppenheimer
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Aging Cebidae

2008
New World monkeys have been used extensively as biomedical models for human diseases, yet little is known about aging in these animals. Life spans in cebids vary, with most species living to approximately 20-30 years of age. Capuchins may be an exception, possibly living as long as 40-50 years.
openaire   +2 more sources

Heterochromatin and cytogenetic polymorphisms in Cebus apella (Cebidae, Platyrrhini)

American Journal of Primatology, 1995
AbstractCytogenetic studies have been carried out in 39 specimens of C. apella of different origins. Three different morphologies, one affecting the long arm of chromosome 4 and two affecting pair 17, have been detected. In each case, they can be related by paracentric inversions.
M, Ponsà, M, García, A, Borell, F, Garcia, J, Egozcue, M A, Gorostiaga, A, Delprat, M, Mudry   +7 more
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ABO blood groups in the primate species of Cebidae from the Amazon region

Journal of Medical Primatology, 2002
The ABO blood groups were determined in blood and saliva collected from 40 Aotus infulatus, 74 Saimiri sciureus, and 96 Cebus apella from the Amazonian region along the Tocantins river. Saliva samples were tested for human ABH antigens by a standard hemagglutination inhibition test. Aotus infulatus showed monomorphism, exhibiting only the B blood group.
T C O, Corvelo, H, Schneider, M L, Harada   +2 more
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The functional morphology of the anterior masticatory apparatus in tree‐gouging marmosets (cebidae, primates)

Journal of Morphology, 2011
AbstractAlthough all genera of Callitrichinae feed on tree exudates, marmosets (Callithrix and Cebuella) use specialized anterior teeth to gouge holes in trees and actively stimulate exudate flow. Behavioral studies demonstrate that marmosets use large jaw gapes but do not appear to generate large bite forces (relative to maximal ability) during ...
Russell T, Hogg, Matthew J, Ravosa, Timothy M, Ryan, Christopher J, Vinyard   +3 more
openaire   +2 more sources