To estimate Wikipedia, 'Even though canines would not have real eyebrows, they are doing have a particular ridge above their eyes, and several breeds, just like the Labrador Retriever, Gordon Setter, Rottweiler, Bernese Mountain Puppy, German Shepherd, and Doberman have markings there. http://onlinemedicalcardlosangel35543.dgbloggers.com/15765327/dog-with-eyebrows-fundamentals-explained