Porcupines sport a very effective defense: their hair, which has evolved into sharp quills! This porcupine rattles special quills on the end of its tail as a warning.
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Details
Title: Cape porcupine
Type: Taxidermy Specimen
Rights: This image was obtained from the Smithsonian Institution. The image or its contents may be protected by international copyright laws. http://www.si.edu/termsofuse