Dental eruption in East African wild chimpanzees

Journal of Human Evolution
Zarin MachandaTanya M Smith

Abstract

Knowledge of chimpanzee development has played an essential role in our understanding of the evolution of human ontogeny. However, recent studies of wild ape dentitions have cast doubt on the use of developmental standards derived from captive individuals. Others have called into question the use of deceased wild individuals to infer normative development. We conducted a high resolution photographic study of living known-age subadults in the Kanyawara community (Kibale National Park, Uganda) to generate a comprehensive three year record of dental eruption (including tooth emergence ages). These non-invasive data allow comparisons of captive and wild chimpanzees, establish accurate developmental standards for relatively healthy wild individuals, and facilitate direct assessments of primate-wide associations between dental development and life history. Emergence ages in the Kanyawara chimpanzees are very similar to living Gombe chimpanzees, and are broadly comparable to deceased Taï Forest chimpanzees. Early-emerging teeth such as the deciduous dentition and first molar (M1) appear during a time of maternal dependence, and are almost indistinguishable from captive chimpanzee emergence ages, while later forming teeth in the Kanyaw...Continue Reading

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Citations

Jul 18, 2015·American Journal of Physical Anthropology·Julia C BoughnerKevin L Kuykendall
May 15, 2016·Journal of Human Evolution·Tanya M Smith
Jun 15, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·M Christopher Dean
Mar 3, 2017·American Journal of Physical Anthropology·Alexandra E KralickShannon C McFarlin
Sep 28, 2017·American Journal of Physical Anthropology·Joel BrayZarin P Machanda
Sep 1, 2017·Biology Letters·Zachary Cofran, Christopher S Walker
Jun 9, 2020·American Journal of Physical Anthropology·Wendy DirksJoanna M Setchell
May 4, 2017·American Journal of Physical Anthropology·Noel CameronLee R Berger
May 26, 2018·American Journal of Primatology·Zachary Cofran
May 15, 2020·Journal of Anatomy·Hallie M Edmonds, Halszka Glowacka
Mar 21, 2020·Frontiers in Endocrinology·Benjamin Campbell
May 4, 2017·American Journal of Physical Anthropology·Jordi GalbanyShannon C McFarlin
Dec 8, 2020·Biological Conservation·Melissa Emery ThompsonRichard W Wrangham
Nov 11, 2019·Journal of Human Evolution·Kate McGrathShannon C McFarlin
Sep 23, 2019·Journal of Human Evolution·Tanya M SmithDavid R Begun
Mar 14, 2021·American Journal of Physical Anthropology·Elizabeth V LonsdorfCarson M Murray
Jul 27, 2021·American Journal of Physical Anthropology·Sean M LeeGottfried Hohmann
Oct 7, 2021·Science Advances·Halszka Glowacka, Gary T Schwartz

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