As K was walking through our back yard yesterday, an object fell out of a tree. He looked into the tree and saw that a squirrel had dropped it. K examined the object and identified it as one of Karma's bones. That's right. A squirrel stole Karma's bone and dragged it into the tree.
Since squirrels are vegetarians, I can only figure that the squirrel stole the bone to get back at Karma for killing its friends/relatives in the backyard. She has caught and killed three squirrels in the back yard, and another two at the dog park, that I know of.