| Literature DB >> 33139541 |
Alessia Nava1,2, Federico Lugli3,4, Matteo Romandini5,6, Federica Badino5,7, David Evans8,9, Angela H Helbling8,9, Gregorio Oxilia5, Simona Arrighi5, Eugenio Bortolini5, Davide Delpiano10, Rossella Duches11, Carla Figus5, Alessandra Livraghi10,12, Giulia Marciani5, Sara Silvestrini5, Anna Cipriani4,13, Tommaso Giovanardi4, Roberta Pini7, Claudio Tuniz14,15,16, Federico Bernardini14,15, Irene Dori17,18, Alfredo Coppa19,20,21, Emanuela Cristiani22, Christopher Dean23,24, Luca Bondioli25,26, Marco Peresani27,10, Wolfgang Müller28,9, Stefano Benazzi3,29.
Abstract
The early onset of weaning in modern humans has been linked to the high nutritional demand of brain development that is intimately connected with infant physiology and growth rate. In Neanderthals, ontogenetic patterns in early life are still debated, with some studies suggesting an accelerated development and others indicating only subtle differences vs. modern humans. Here we report the onset of weaning and rates of enamel growth using an unprecedented sample set of three late (∼70 to 50 ka) Neanderthals and one Upper Paleolithic modern human from northeastern Italy via spatially resolved chemical/isotopic analyses and histomorphometry of deciduous teeth. Our results reveal that the modern human nursing strategy, with onset of weaning at 5 to 6 mo, was present among these Neanderthals. This evidence, combined with dental development akin to modern humans, highlights their similar metabolic constraints during early life and excludes late weaning as a factor contributing to Neanderthals' demise.Entities:
Keywords: Neanderthal ontogeny; dental histology; life histories; nursing strategy; spatially resolved chemical analyses
Mesh：
Year: 2020 PMID： 33139541 PMCID： PMC7682388 DOI： 10.1073/pnas.2011765117
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205