The result of a very brave (more probably, very stupid) dog, who attacked a Porcupine in 2005.
The Quill Queen, was most uncomfortable with over 1,300 quills in her front half. She couldnt close her mouth as her tongue was covered with quills.
Apparently, there were a lot of quills embedded that were left to work themselves out.
I feel for the naked Porcupine.