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CreatureCast – Two Urchins


The green urchin and the pencil urchin are alike in many ways, but their differences matter in a big way when it comes to their ecological impacts. Casey Dunn originally posted this episode in an article he published in the New York Times. Made by Sofia Castello y Tickell, a research assistant, and Robert Lamb, a graduate student, in Professor Jon Witman's laboratory. The music is by Jahzza.
This research was supported by the Division of Environmental Biology of the National Science Foundation under award DEB-1256695

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International license


Castello y Tickell, Sofia, and Lamb, Robert, "CreatureCast – Two Urchins" (2014). Open Educational Resources (OER) and Research Impacts, CreatureCast Archives, Brown University Open Data Collection. Brown Digital Repository. Brown University Library.



  • Open Educational Resources (OER) and Research Impacts

    This collection was created by Brown University's Engaged Scholarship and Broader Impacts Working Group (ESBI) to provide Brown University researchers with an online platform for preserving and publishing their open access STEM-related digital scholarship, Open Educational Resources (OERs), and Broader …

  • CreatureCast Archives

    This is an archive of broader impacts materials produced by Dr. Casey William Dunn (Ecology and Evolutionary Biology) and his students during his years as a professor at Brown University (2007-2017). Professor Dunn and his students were involved in several …
  • Brown University Open Data Collection

    This collection contains open and publicly-funded data sets created by Brown University faculty and student researchers. Increasingly, publishers, and funders are requiring that protocols, data sets, metadata, and code underlying published research be retained and preserved, their locations cited within …