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The origin and dispersal of domestic livestock species in the Fertile Crescent. Shaded areas show the general region and the approximate dates in calibrated years B.P. in which initial domestication is thought to take place. Dates outside of the shaded areas show the approximate date when the domesticate first appears in a region. Orange, goats (Capra hircus); blue, sheep (Ovis aries); green, cattle (Bos taurus); fuscia, pigs (Sus scrofa).
