Hard to believe the dog is still there

Mrs. Wolves got pretty zealous about packing stuff away recently, which means we can't find anything. One of the things we couldn't find was our dog brush. Cpl. Wolves noticed that Jeb the Wonder Dog needed brushing -- badly -- and ordered a dog brush. Mrs. Wolves put that brush to work last night, and it was clear that Jeb needed brushing:

Which is bigger, the pile of hair or the dog?