This creature
# is believed to have over 30 000 quills
# lashes its tail threateningly when disturbed, possibly detaching loose quills, which fly through the air as though they were thrown
# chews on a variety of objects, including wood, leather, bones, and cast-off antlers, perhaps to satisfy a craving for salt and the need to hone continuously growing teeth
# is a solitary animal for much of the year

http://www.hww.ca/hww2.asp?id=100