Results 11 to 20 of about 5,331 (174)
Impacted Bones: Can Extant Primates Help Identify Tool Use in Early Hominins? [PDF]
Evolutionary Anthropology: Issues, News, and Reviews, Volume 35, Issue 3, September 2026.ABSTRACT Despite recent advances pushing back the earliest record of tool use, how and when it first emerged in hominins, and the extent to which it featured amongst the numerous co‐existing species, remain critical questions in paleoanthropology. In addition to analyzing fossils and lithic toolkits, novel strides in understanding this might be made by
Rachel M. Hurwitz +3 more
wiley +2 more sources
Taxonomic and sex differences in sagittal cresting among gracile and robust capuchin monkeys [PDF]
Journal of Anatomy, Volume 248, Issue 1, Page 53-61, January 2026.In this study, I show that there are interspecific differences in the frequency and pattern of sagittal cresting among six capuchin species. Four of the six species show sagittal cresting, with Cebus capucinus showing a different sagittal cresting pattern to that observed in three robust capuchin species. All four crested species show sexual dimorphism
Katharine L. Balolia
wiley +2 more sources
, 1993 Cebus albifrons (Humboldt, 1812). Rec. Observ. Zool., 1:324. TYPE LOCALITY: Venezuela, Orinoco River. DISTRIBUTION: Venezuela, Colombia, Ecuador, N Peru, NW Brazil, Trinidad. STATUS: CITES - Appendix II. SYNONYMS: adustus, aequatorialis, castaneus,
Colin P. Groves
core +2 more sources
, 1982 <p> <i>Cebus albifrons</i> (Humboldt, 1812). Rec. Observ. Zool., 1:324.</p> <p>TYPE LOCALITY: Venezuela, Orinoco River.</p> <p>DISTRIBUTION: Venezuela; Colombia; Ecuador; N. Peru; N.W.
Kenneth E. Kinman +2 more
core +3 more sources
Behavioral Contagion in Wild Ecuadorian White‐Fronted Capuchins (Cebus aequatorialis) [PDF]
American Journal of Primatology, Volume 88, Issue 1, January 2026.White‐fronted capuchins exhibit scratching contagion, but neither the characteristics of the trigger, or of the partner's (sex, age class, or centrality), or of the dyad (combination of sex, combination of age class, or social bond) seem to modulate the likelihood of contagion.
Núria Hassina Hannaoui +3 more
wiley +2 more sources
Taxon, Arboreality, Sex, and Season—Factors Influencing Gastrointestinal Parasite Occurrence in Zoo‐Housed Non‐Human Primates [PDF]
Zoo Biology, Volume 45, Issue 4, Page 371-381, July/August 2026.ABSTRACT The emergence of anthelminthic resistance is a well‐documented phenomenon in livestock and companion animals. Given the scarcity of new antiparasitic drugs, the implementation of effective, holistic anthelminthic control strategies is critical to preserving the efficacy of existing treatments.
Stalder Sandro, Hatt Jean‐Michel
wiley +2 more sources
Characterization of antimicrobial resistance profiles in Escherichia coli isolated from captive mammals in Ecuador [PDF]
Veterinary Medicine and Science, Volume 10, Issue 4, July 2024.Among 90 E. coli isolates from 70 mammals, significant resistance was found to ampicillin (52.22%), ceftriaxone (42.22%) and cefuroxime (42.22%), with 27.78% being ESBL‐producing. Notably, 66.67% of isolates showed resistance to at least one antibiotic, and 35.56% exhibited multiresistant phenotypes.
Anabell Medina +9 more
wiley +2 more sources
Tails in Action: Comparative Use of the Prehensile Tail and Substrate in Alouatta macconnelli, Sapajus apella, and Potos flavus [PDF]
American Journal of Primatology, Volume 87, Issue 3, March 2025.Barplot representing the frequencies (percentages) of positional behaviors in relation to tail use for Alouatta macconnelli (left), Potos flavus (middle), and Sapajus apella (right). For each species, the left barplot represents all positional behaviors, the middle one postural behaviors, and the right one locomotor behaviors.
Arthur Georges Naas +4 more
wiley +2 more sources
Fatal yellow fever among captive non-human primates in southern Colombia, 2025 [PDF]
Frontiers in Veterinary ScienceBackgroundYellow fever virus (YFV) remains a re-emerging zoonotic threat in South America. While epizootics in free-ranging Alouatta spp. are well-documented, little is known about YFV infection in other Neotropical non-human primates (NHPs ...
Ivan Camilo Sanchez-Rojas +11 more
doaj +2 more sources
Mitochondrial DNA for Phylogeny Building: Assessing Individual and Grouped mtGenes as Proxies for the mtGenome in Platyrrhines [PDF]
American Journal of Primatology, Volume 87, Issue 3, March 2025.ABSTRACT Phylogenetic trees are analytic tools used in primate studies to elucidate evolutionary relationships. Because of its relative ease to sequence and rapid evolution compared to nuclear genomes, mitochondrial DNA is frequently used for phylogeny building. This project evaluated the effectiveness of using individual or grouped mitochondrial genes
Natalie Finnegan +2 more
wiley +2 more sources