Early life of Neanderthals.
Neanderthal ontogeny
dental histology
life histories
nursing strategy
spatially resolved chemical analyses
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
17 11 2020
17 11 2020
Historique:
pubmed:
4
11
2020
medline:
16
1
2021
entrez:
3
11
2020
Statut:
ppublish
Résumé
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.
Identifiants
pubmed: 33139541
pii: 2011765117
doi: 10.1073/pnas.2011765117
pmc: PMC7682388
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
28719-28726Déclaration de conflit d'intérêts
The authors declare no competing interest.
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