Porcupine

Bet you never expected to find me up here.  If I were to complement you, I might say something like, you're looking pretty sharp today.

I'm a night animal.  Sometimes you'll see me by day shuffling over the forest floor or hunched into a large ball in a tree.  

If bothered I erect my spines, arch my back, and tuck my head between my front legs; keeping my back toward any tormentor.  I may strike with my tail, but I do not throw or shoot my spines. 

Blackie