Results 11 to 20 of about 1,480 (180)

Enamel Prism Angle Variation and Hard-Object Feeding in Cercopithecoids With Known Diets. [PDF]

Am J Biol Anthropol
Left: Cercocebus atys specimen 16–9 third molar showing Phase II enamel prism angle (angle between prism path and wear facet) and wear angle (angle between wear facet and enamel dentin junction (EDJ)). Scatterplot of prism vs. wear angles for the Phase II wear facet. Note the higher angles for Cercocebus.
Scheinblum J, McGraw WS, Gurian K, Guatelli-Steinberg D.   +3 more
europepmc   +2 more sources

Jaw-Muscle Structure and Function in Primates: Insights Into Muscle Performance and Feeding-System Behaviors. [PDF]

Evol Anthropol
ABSTRACT The jaw‐adductor muscles drive the movements and forces associated with primate feeding behaviors such as biting and chewing as well as social signaling behaviors such as wide‐mouth canine display. The past several decades have seen a rise in research aimed at the anatomy and physiology of primate chewing muscles to better understand the ...
Taylor AB, Holmes MA, Laird MF, Terhune CE.   +3 more
europepmc   +2 more sources

Inferences about fossil hominin locomotion through 3D morphometric analysis of wrist ligament insertion sites [PDF]

Scientific Reports
Understanding the evolution of wrist anatomy in fossil hominins is essential for reconstructing their locomotor behavior and manipulative capabilities. Traditionally, most studies have focused on bone morphology, overlooking the informative potential of ...
Aroa Casado, Xavier Martínez-Liria, Marta San-Millán, Laura Menés, Neus Ciurana, Marcel García-Cuesta, Patrícia Rodríguez, Francisco Pastor, Roberto Cabo, Josep Maria Potau   +9 more
doaj   +2 more sources

Taxonomic and sex differences in sagittal cresting among gracile and robust capuchin monkeys. [PDF]

J Anat
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
Balolia KL.
europepmc   +2 more sources

Brief Communication: An Incipient Coronal Caries Lesion on a Neandertal Molar Tooth From El Sidrón Cave (Northern Spain). [PDF]

Am J Biol Anthropol
ABSTRACT Objectives Here, we present the findings of an incipient caries lesion on a permanent upper left second molar attributed to an adult male Neandertal individual from El Sidrón Cave. This study presents new data regarding the antiquity of human caries lesions, their development, and the possibility of the para‐masticatory behavior component as a
Estalrrich A, Alarcón JA, Tabernero AG, Rosas A.   +3 more
europepmc   +2 more sources

Bipedalism or bipedalisms: The os coxae of StW 573. [PDF]

J Anat
There has been a long debate about the possibility of multiple contemporaneous species of Australopithecus in both eastern and southern Africa, potentially exhibiting different forms of bipedal locomotion. Here, we describe the previously unreported morphology of the os coxae in the 3.67 Ma Australopithecus prometheus StW 573 from Sterkfontein Member 2
Crompton R, Elton S, Heaton J, Pickering T, Carlson K, Jashashvili T, Beaudet A, Bruxelles L, Kuman K, Thorpe SK, Hirasaki E, Scott C, Sellers W, Pataky T, Clarke R, McClymont J.   +15 more
europepmc   +2 more sources

Premolar root and canal variation in South African Plio-Pleistocene specimens attributed to Australopithecus africanus and Paranthropus robustus [PDF]

Journal of Human Evolution, 2016
South African hominin fossils attributed to Australopithecus africanus derive from the cave sites of Makapansgat, Sterkfontein, and Taung, from deposits dated between about 2 and 3 million years ago (Ma), while Paranthropus robustus is known from ...
Hublin, Jean-Jacques, Moore, N. Collin, Skinner, Matthew M., Thackeray, J. Francis   +3 more
core   +4 more sources

Isotopic Evidence for Dietary Variability in the Early Hominin Paranthropus robustus [PDF]

Science, 2006
Traditional methods of dietary reconstruction do not allow the investigation of dietary variability within the lifetimes of individual hominins. However, laser ablation stable isotope analysis reveals that the δ 13 C values of Paranthropus robustus individuals often changed seasonally and ...
Matt, Sponheimer, Benjamin H, Passey, Darryl J, de Ruiter, Debbie, Guatelli-Steinberg, Thure E, Cerling, Julia A, Lee-Thorp   +5 more
openaire   +4 more sources

New hominin dental remains from the ∼2.04–1.95 Ma Drimolen Main Quarry, South Africa

Annals of Human Biology, 2023
Background The Drimolen Palaeocave site is situated within the UNESCO Fossil Hominid Sites of South Africa World Heritage Area and has yielded numerous hominin fossils since its discovery in 1992.
A. B. Leece, J. M. Martin, S. Baker, C. Wilson, D. S. Strait, G. T. Schwartz, A. I. R. Herries   +6 more
doaj   +1 more source

Homoplasy in the evolution of modern human-like joint proportions in Australopithecus afarensis

eLife, 2021
The evolution of bipedalism and reduced reliance on arboreality in hominins resulted in larger lower limb joints relative to the joints of the upper limb. The pattern and timing of this transition, however, remains unresolved.
Anjali M Prabhat, Catherine K Miller, Thomas Cody Prang, Jeffrey Spear, Scott A Williams, Jeremy M DeSilva   +5 more
doaj   +1 more source