The long nails (I wouldn't call them claws) look like a dog that doesn't get outside much. If a dog is outside, walking around, digging etc the nails get groun

The long nails (I wouldn't call them claws) look like a dog that doesn't get outside much. If a dog is outside, walking around, digging etc the nails get ground down and would be much shorter. If this were a wild animal, those nails would definitely be shorter. I would say this was a house pet in the very recent past (whether a dog, or some wolf-dog type animal).