Differences in the Timing of Prechondrogenic Limb Development in Mammals: The Marsupial-Placental Dichotomy Resolved

@inproceedings{Sears2009DifferencesIT,
  title={Differences in the Timing of Prechondrogenic Limb Development in Mammals: The Marsupial-Placental Dichotomy Resolved},
  author={Karen E. Sears},
  booktitle={Evolution; international journal of organic evolution},
  year={2009}
}
  • K. Sears
  • Published in
    Evolution; international…
    1 August 2009
  • Biology, Medicine
In contrast to placentals, marsupials are born with forelimbs that are greatly developmentally advanced relative to their hind limbs. Despite significant interest, we still do not know why this is the case, or how this difference is achieved developmentally. Studies of prechondrogenic and chondrogenic limbs have supported the traditional hypothesis that marsupial forelimb development is accelerated in response to the functional requirements of the newborn's crawl to the teat. However, limb… Expand
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