The Squirrel and the Bone

This morning, while taking care of the rabbits and chickens, I kept hearing a strange scratching sound coming from the trees.  Upon closer inspection I discovered that a squirrel had a segment of deer legbone and was holding it in on a branch sharpening it's teeth.  Neat.  I'd never seen that before but it makes sense.  They have to have sharp teeth after all to break open all those nuts!