To estimate Wikipedia, 'When puppies would not have real eyebrows, they do have a particular ridge higher than their eyes, and a few breeds, similar to the Labrador Retriever, Gordon Setter, Rottweiler, Bernese Mountain Dog, German Shepherd, and Doberman have markings there. https://augustacbxu.diowebhost.com/67034095/dog-with-eyebrows-an-overview