How do armadillos roll into a ball?


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  • "Armadillos." The Humane Society of the United States." (Oct. 29, 2008)http://nationalzoo.si.edu/Publications/ZooGoer/2007/6/Strange_Joints.cfm
  • Feldhamer, George A.; Thompson, Bruce Carlyle; and Chapman, Joseph A. "Wild Mammals of North America." JHU Press. 2003. (Oct. 29, 2008)http://books.google.com/books?id=-xQalfqP7BcC
  • Lumpkin, Susan. "Strange Joints: Anteaters, Armadillos, and Sloths." Zoogoer. Smithsonian National Zoological Park. November/December 2007. (Oct. 29. 2008)http://nationalzoo.si.edu/Publications/ZooGoer/2007/6/Strange_Joints.cfm
  • Mengak, Michael T. "Nine-Banded Armadillo." Warnell School of Forest Resources. University of Georgia. May 2005. (Oct. 29, 2008)http://www.forestry.uga.edu/Members/mengak/files/NHS%2005-04%20- %20Armadillo.pdf
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