I adopted Jack from the humane society about 2 months. He is a hit with EVERYONE! I was told he was a rat terrier mix, but he looks far from that. He is currently 4 months and around 20 lbs. He was fluffy when we first got him, but he shed that hair off and now has a smooth coat. He was also a natural born fetcher and has webbed feet, so may have some lab in him? He also has a curly tail that loops around and lays on his back and has developed wrinkles on his face that let him show all of his emotions.