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The intensification of agriculture is regarded as a major transition in human prehistory that affected key aspects of the physical and cultural environments over time. One of the ways to measure human adaptation to this transition is through sexual dimorphism in body size. Previous bioarchaeological studies have shown that when the difference in body size between males and females decreases over time,...
Résumé Les modalités d’acquisition des comportements alimentaires chez les primates défient les explications théoriques issues de la théorie des histoires de vie. Comment expliquer que chez l’homme, par exemple, l’enfant soit sevré plus rapidement que les jeunes des autres espèces anthropoïdes ? Afin d’appréhender les déterminants du développement des comportements alimentaires chez les primates,...
Résumé Les restes d’hominidés1 fossiles sont généralement trouvés dans des niveaux géologiques contenant aussi des Cercopithecoidea. Ils ont donc partagé plus ou moins les ressources des mêmes milieux. En Afrique du Sud, la biodiversité de ces Cercopithecoidea était aussi importante qu’en Afrique de l’Est. Dans le Cradle of Humankind, il existe de nombreux sites pliopléistocènes. Bolt’s Farm est une...
Growth studies on human and nonhuman primates contribute to a range of research topics such as somatic growth and the establishment of charts for growth and skeletal maturity, and therefore provide a valuable evolutionary perspective. Longitudinal studies, especially long-term ones, provide the most accurate data to assess the factors that influence growth and development, and to construct growth...
For a long time, humans (genus Homo) were thought to be the only mammalian species capable of dextrous manual grasping. However, grasping is widespread among tetrapods, and among primates, it is associated with a wide range of morphological, dietary and locomotor variation. From an evolutionary perspective, this prompts several questions: is the origin and evolution of grasping in primates derived...
Communication in primates is based on multiple elements of signals, often expressed in different modalities. While some individual primate signals are relatively well described for a particular cue (e.g. copulation calls, sexual swellings) or for one specific dimension of a signal (e.g. the size of sexual swellings), few studies have simultaneously investigated the role of multiple signals and cues...
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