The German Shorthaired Pointer (GSP) is a medium to large sized breed of dog developed in the 19th century in Germany for hunting. Her eyes are generally brown, with darker eyes being desirable; yellow or 'bird of prey' eyes are a fault. The tail is commonly docked, although this is now prohibited in some countries. This allows the German Shorthaired Pointer to be an agile hunter with high performance in both field and water. The color can be a dark brown with some lighter brown colors, referred to as 'liver' (incorrectly as 'chocolate' or 'chestnut'), black (although any area of black is cause for disqualification in American Kennel Club-sanctioned shows), white, liver roan, or liver and white. The coat can be very glossy if washed. The temperament of dogs can be affected by different factors, including heredity, training, and socialization. The German Shorthaired Pointer was developed to be a dog suited for family life, as well as a versatile hunter.