We got a Lab mix (estimated 1 1/2 years at the time) from the shelter about five months ago.
Our vet said it's most likely a little bit Doberman (looks identical to a black lab except in certain light his coat has a reddish tint, and has a white spot on his chest.)
We had a lab before. Got him when I was 7 (21 now) put down last summer.)
Compared to Gus, Mason is just nuts. 90 lbs of craziness. He is about the most athletic dog I have ever seen. You could tell he wasn't socialized much before we got him.
Anyways people think that because I say he is part doberman that he is aggressive but that's not true. While he likes to play VERY rough with both people and other dogs, it usually takes something to set him off.
PS: Why the heck do labs have such huge appetites?!