Results 21 to 30 of about 4,924 (180)
Evolutionary morphology of the haplorhine hamate
Abstract Primates adopt a variety of hand postures during an impressive diversity of locomotor and manipulative behaviors. Morphological research has found that elements of the hand skeleton, such as the hamate, hold key information for inferring hand use and locomotor kinematics in extinct species.
Laura E. Hunter +4 more
wiley +1 more source
Published as part of Russell A. Mittermeier, Anthony B. Rylands & Don E. Wilson, 2013, Cebidae, pp. 348-413 in Handbook of the Mammals of the World – Volume 3 Primates, Barcelona :Lynx Edicions on pages 407-408, DOI: 10.5281/zenodo ...
Russell A. Mittermeier +2 more
openaire +2 more sources
Humans and platyrrhines share a pattern of articular variance
Abstract Previous work has identified a pattern of articular shape variation in modern human limb joints, in which convex joint surfaces exhibit constrained variance relative to their more variable concave conarticulars. This pattern is notable given that joint morphogenesis is influenced by local biomechanical environments, which vary substantially ...
Haley Horbaly, Liam Zachary
wiley +1 more source
The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals
Abstract Human childbirth has often been considered uniquely difficult among mammals, yet recent evidence suggests that obstructed labor and fetopelvic disproportion are widespread across placental mammals. Here, we propose the “costly son” hypothesis: because male offspring are typically larger at birth, they impose greater obstetric risk on mothers ...
Nicole D. S. Grunstra +1 more
wiley +1 more source
Trinta hemisférios cerebrais do primata Cebus apella foram estudados. Os cérebros foram injetados com solução de látex corado (neoprene 450 e sulvinil corante), fixados em formaldeído a 10% e dissecados sob lupa óptica para fins de estudo da morfologia ...
Jussara Rocha Ferreira +3 more
doaj +3 more sources
Megadiverse genera represent the highest concentration of plant diversity, but these plants are also located primarily in countries in the Global South where huge gaps in botanical knowledge remain. This study summarized two centuries of Begonia collection records in the Philippines to show how historical events coincide with collection and taxonomic ...
Mark Angelo C. Bucay +5 more
wiley +1 more source
Foi investigada a susceptibilidade do primata Cebus apella (Cebidae) à infecção experimental pela Leishmaiua (Viannia) lainsoni, com o objetivo de estudara patogenia desse parasita, ainda pouco conhecido para o homem. Dessa forma, cinco espécimens jovens
Fernando T. Silveira +6 more
doaj +3 more sources
The anatomical comparative studies among the primates are important for the investigation of ethology, evolution, taxonomy, and comprehension of tools by hominoids.
Tainá de Abreu +6 more
doaj
The Platyrrhine Primate Cebus imitator Uses Gaze to Manipulate and Withdraw Food to the Mouth [PDF]
Orienting a food item held in the hand to withdraw and optimally place it in the mouth for eating (withdraw-to-eat) is mediated by vision in catarrhine anthropoids and by nonvisual strategies in strepsirrhine primates.
Ian Q. Whishaw +6 more
doaj +1 more source
The level of aggressiveness of an individual is a factor that shapes intraguild predation (IGP) interactions. In Nabis americoferus, high aggressiveness leads to an increase in attack rate and IGP against Harmonia axyridis. Moreover, the absence of extraguild prey seems to exacerbate IGP. In docile N.
Pierre Royer +3 more
wiley +1 more source

