rottweiler a popular family guardian dog and pug with distinct features

rottweiler popular family guardian dog pug distinct features adorable adult animal background beautiful big black breed brown canine cute doggy domestic face friend friendly funny grass green guard happiness happy head isolated looking mammal muscular nature outdoor outdoors outside park pedigree pedigreed pet portrait pup puppy purebred security smile strong studio summer tongue walk young wrinkly shortmuzzled curled tail