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Related Experiment Videos

Further observations on a method for estimating hominoid dental developmental patterns

M Lampl1, J M Monge, A E Mann

  • 1Department of Anthropology, University of Pennsylvania, Philadelphia 19104.

American Journal of Physical Anthropology
|January 1, 1993
PubMed
Summary

Recent studies incorrectly classify early human ancestors as ape-like based on dental development. New analysis shows these methods misidentify modern children, deeming the "ape-like" hominine classification unwarranted.

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Area of Science:

  • Paleoanthropology
  • Evolutionary Biology
  • Developmental Biology

Background:

  • Recent research suggests early hominines shared ape-like dental development patterns.
  • This has led to inferences about their broader growth and development being ape-like.

Observation:

  • Comparative methods used to assess fossil juveniles were not validated for accuracy in distinguishing modern humans from apes.
  • A sample of 48 modern children was analyzed using these criteria.

Findings:

  • 92% of modern children were classified as ape-like or nonhuman by the study's criteria.
  • These classifications overlapped entirely with fossil juvenile dental patterns.

Implications:

  • The methods used to label early hominines as 'ape-like' are unreliable.

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  • Characterizing early hominines as distinctly divergent from humans based on these dental ontogeny patterns is unwarranted.