
A stately-looking matron was walking through the Bronx Zoo, studying the
animals.  When she passed the porcupine enclosure she beckoned to a nearby
attendant.
	"Young man," she began, "do North American porcupines have sharper
pricks than those raised in Africa?"
	The attendant hesitated for a moment.  "Well, ma'am," he answered,
"the African porcupine's quills are sharper... but I think their pricks are 
about the same."
