This North American porcupine (Erethizon dorsatum) is now deposited as a voucher specimen in the University of Michigan Museum of Zoology (UMMZ) mammal collections and available for study by the worldwide scientific community. The UMMZ is a center for the study of animal diversity, and houses world-class collections with nearly 15 million specimens that span almost 200 years of regional and global biodiversity studies.
The 3D image data (CT) is available free online and can be accessed by researchers anywhere in the world on Morphosource.org as part of the NSF-funded oVert project (
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