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  Australopithecus afarensis endocasts suggest ape-like brain organization and prolonged brain growth

Gunz, P., Neubauer, S., Falk, D., Tafforeau, P., Le Cabec, A., Smith, T. M., et al. (2020). Australopithecus afarensis endocasts suggest ape-like brain organization and prolonged brain growth. Science Advances, 6(14): eaaz4729. doi:10.1126/sciadv.aaz4729.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0005-FFD9-8 Versions-Permalink: https://hdl.handle.net/21.11116/0000-000B-968E-C
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Gunz_Australopithecus_SciAdvan_2020.pdf (Verlagsversion), 3MB
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 Urheber:
Gunz, Philipp1, Autor                 
Neubauer, Simon1, Autor                 
Falk, Dean, Autor
Tafforeau, Paul, Autor
Le Cabec, Adeline1, Autor                 
Smith, Tanya M., Autor
Kimbel, William H., Autor
Spoor, Fred1, Autor           
Alemseged, Zeresenay, Autor
Affiliations:
1Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Max Planck Society, ou_1497673              

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 Zusammenfassung: Human brains are three times larger, are organized differently, and mature for a longer period of time than those of our closest living relatives, the chimpanzees. Together, these characteristics are important for human cognition and social behavior, but their evolutionary origins remain unclear. To study brain growth and organization in the hominin species Australopithecus afarensis more than 3 million years ago, we scanned eight fossil crania using conventional and synchrotron computed tomography. We inferred key features of brain organization from endocranial imprints and explored the pattern of brain growth by combining new endocranial volume estimates with narrow age at death estimates for two infants. Contrary to previous claims, sulcal imprints reveal an ape-like brain organization and no features derived toward humans. A comparison of infant to adult endocranial volumes indicates protracted brain growth in A. afarensis, likely critical for the evolution of a long period of childhood learning in hominins.

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Sprache(n): eng - English
 Datum: 2020-04-01
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1126/sciadv.aaz4729
 Art des Abschluß: -

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Titel: Science Advances
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 6 (14) Artikelnummer: eaaz4729 Start- / Endseite: - Identifikator: -