when i came home from work last thursday my dog was loose (inadvertantly left out side) and laying in a pool of blood .out by my lab who was hooked up outside. we brought him in he was frozen with ice all over him. he almost immidiattly started blleding again .so we took him to the vet .he had to be carried .he is a 75 pd. mix breed who is 10 years old. upon examination the vet said he was attacked by another animal. he had many many scraps and what appear to be claw marks the vet shaved those areas and they werevery apparant .they are all over his body feet ,rib area , legs but mostly the neck. one of which is a gash 6 inches long and deep. all together he had 780. oo worth of stitches he is a fairly low key submisive dog . we live in a rural area ,with no woods around for 400-500 yards its all field and we really have no neighbors . so i really dont think he made it back from the woods due to his condition and its out of the question that the lab did it . any ideas (if only dogs could talk).