Porcupine Doesn't Throw His Quills

The spines are veiy loosoly attached to the poreupine, and they are very sharp - as sharp as a needie at the outer end. At almost the slightest touch they penétrate tho nose of a dog or the clothing or flesh of a porson touching the porcupine and stick there, coming away from the animal without any pull being required. The facility in catching hold svith one end and letting go with the I other has eometimes oaused people to tliink that the spines had been thrown at theni. Tho outer end of the spines, forsome distance down, iscovered with small barbs. These barbs cause a spine [ once imbeddcd in a living animal to I keep v?orking farther iu with every piovernent of the niuscles, so that it ia not a pJeasant thing to get stuck fnll of