The domestic goat (Capra aegagrus hircus) is a subspecies of goat domesticated from the wild goat of southwest Asia and Eastern Europe. The goat is a member of the Bovidae family and is closely related to the sheep: both are in the goat-antelope subfamily Caprinae. There are over three hundred distinct breeds of goats.Hirst, K. Kris. "The History of the Domestication of Goats". About.com. Accessed August 18, 2008.

Goats are one of the oldest domesticated species. For thousands of years, goats have been used for their milk, meat, hair, and skins over much of the world. In the twentieth century they also gained in popularity as pets.

Female goats are referred to as does or nannies, intact males as bucks or billies; their offspring are kids. Castrated males are wethers. Goat meat from younger animals is called kid or cabrito, and from older animals is sometimes called chevon, or in some areas “mutton”.

Etymology

The Modern English word "goat" comes from the Old English gat which meant "she-goat", and this in turn derived from Proto-Germanic *gaitaz (compare Old Norse and Dutch geit (meaning "goat"), German Geiß ("she-goat") and Gothic gaits, ("goat") ultimately from Proto-Indo-European *ghaidos meaning "young goat" but also "play" (compare Latin haedus meaning "kid"). The word for "male goat" in Old English was bucca (which survives as "buck", referring to certain male herbivores) until a shift to "he-goat" (and also "she-goat") occurred in the late 12th century. "Nanny goat" originated in the 18th century and "billy goat" in the 19th.

History

The most recent genetic analysis confirms the archaeological evidence that the Anatolian Zagros are the likely origin of almost all domestic goats today. Neolithic farmers began to keep them for easy access to milk and meat, primarily, also for their dung, which was used as fuel and their bones, hair, and sinew for clothing, building, and tools. Domestic goats were generally kept in herds that wandered on hills or other grazing areas, often tended by goatherds who were frequently children or adolescents, similar to the more widely known shepherd. These methods of herding are still used today.

Historically, goat hide has been used for water and wine bottles in both traveling and transporting wine for sale. It has also been used to produce parchment.

Anatomy

Most goats naturally have two horns, of various shapes and sizes depending on the breed. While horns are a predominantly male feature, some breeds of goats have horned females. Polled (hornless goats) are not uncommon and there have been incidents of polycerate goats (having as many as eight horns), although this is a genetic rarity thought to be inherited. Their horns are made of living bone surrounded by keratin and other proteins and are used for defense, dominance, and territoriality.