Hi, just curious what breed your dog is, because he looks EXACTLY like my dog down to the bent ear, my girl has one ear that stands up the other bent in the same way yours is. She's black too but has a white patch on her chest and as she's gotten older she's gotten more barrel chested same tail, face everything!! I got mine from the animal shelter when she was 5 months old, she's 9 years old now a good dog...a little hyper at times!! Best I know is she's a lab/shepherd mix German shepherd? Hoping you might shed light on yours...I always wondered if it was Australian shepherd?