The boxer is a German breed, developed in the late 1800s from mastiff-type dogs known as bullenbeisers (bull-baiters). The brabant bullenbeiser is generally accepted as being the most immediate ancestor of the boxer. These dogs were selectively bred for hunting and holding prey –

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  The modern boxer is a medium sized dog, short haired, energetic and muscular dog. Males stand between (23-25 inches) tall and weigh around (66-70lb), and females (21-23 inches) weighing around (55-60lb).

Boxers are prone to a number of health conditions:

• Aortic stenosis/subaortic stenosis (AS/SAS)
• Boxer cardiomyopathy
• Hip dysplasia
• Hypothyroidism
• Corneal dystrophy
• Demodectic mange
• Cancer
• Bloat
• Allergies

Brindle, fawn and white. Technically speaking, there are only two colours – brindle and fawn. Boxers may or may not also have white markings (known as "flash")and the white boxer is simply a fawn or a brindle with very extensive white markings covering the whole or most of the coat . Fawn boxers have a solid fawn colour coat, in shades ranging from pale tan to deep deer red. Brindle boxers have the same fawn ground colours, overlaid with various degrees of dark striping. The correct term for any brindle is brindle - but depending on the fawn ground colour, concentration of striping and local terminology, they can be variously described as "light", "golden", "fawn", "red", "mahogany", "dark", "reverse" or "seal" brindle.

This info was researched and found on boxerworld.com, for more info please visit their website!