Indeed, as the C.K.C. Boxer Standard stipulates “The Boxer's natural ears are defined as: moderate in size (small rather than large), thick to the touch, set wide apart at the highest points of the side of the skull and lying flat and close to the cheek when in repose. When the dog is alert the ears should fall forward with a definite crease".
Historically, boxers were used both as guard dogs as well as in boar hunting. It was thought that cropping ears would reduce the ability of human invaders/threatened prey to grab onto the ears and injure the dog. Additionally, in dogs used for guarding property such as boxers, cropped ears were thought to make the breed appear more ferocious; hanging ears are reminiscent of the naturally droopy ears of puppies, looking more cute than dangerous. Docking of the tail and ear cropping are both procedures that have been subject to controversy in recent times. However, the decision completely rests with the owner's discretion in regions where the procedures are allowed. It must be noted that in recent years, there has been an increase in the showing of natural eared boxers, and Lambada has been shown and gained her championships without cropped ears.