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Cortical growth marks reveal extended juvenile development in New Zealand moa

Author

Listed:
  • Samuel T. Turvey

    (University of Canterbury
    Zoological Society of London)

  • Owen R. Green

    (University of Oxford)

  • Richard N. Holdaway

    (University of Canterbury
    Palaecol Research Ltd)

Abstract

Why moa are no more Ornithurines, the theropod group that includes all modern birds, are characterized by rapid growth rates. Most of their growing is done in less than a year. The recently extinct New Zealand moa, however, was different. Cyclical growth marks have been detected in the bones of museum specimens of the giant moa, Dinornis, consistent with much slower growth. It took them almost a decade to reach maturity, a factor that may have contributed to their demise in the face of hunting by early human colonists.

Suggested Citation

  • Samuel T. Turvey & Owen R. Green & Richard N. Holdaway, 2005. "Cortical growth marks reveal extended juvenile development in New Zealand moa," Nature, Nature, vol. 435(7044), pages 940-943, June.
    • Handle: RePEc:nat:nature:v:435:y:2005:i:7044:d:10.1038_nature03635
    DOI: 10.1038/nature03635
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