Goats were among the first livestock—and still climb trees to browse
Domestic goats descend from wild Capra aegagrus of Southwest Asia and Eastern Europe, herded in Iran roughly ten thousand years ago. By twenty twenty-two more than one point one billion lived worldwide, one hundred fifty million in India alone. Curious browsers, they are the only ruminants that regularly climb trees.
Genetic work backs archaeology: the bezoar ibex of the Zagros, once widespread in Anatolia, is the likely ancestor of most herds. Neolithic farmers wanted milk, meat, dung fuel, and materials from bone, hair, and sinew. The earliest domestic remnants, about ten thousand years before present, come from Ganj Dareh in Iran; sites such as Jericho and Çayönü place Western Asian domestication between eight and nine thousand years ago.
Adult size spans Boer bucks over one hundred forty kilograms down to African Pygmy adults only forty-one to fifty-eight centimetres at the shoulder. Most grow two living-bone horns sheathed in keratin; breeding two genetically polled goats often yields sterile intersex kids. Horizontal slit pupils widen the side view for predators without glare from above, and goats lack tear ducts. They are diploid with thirty chromosome pairs and a four-chambered ruminant stomach; does usually have two teats, though Boers may carry more.
Behaviour sets them apart from sheep: they browse rather than graze, spread while feeding, leave kids lying out, and face intruders. Some studies rate their intelligence near dogs, and a twenty sixteen paper found they look to humans for help when puzzles change—much as dogs and horses do. Dairy does can yield roughly six hundred eighty to one thousand eight hundred ten kilograms of milk across a three-hundred-five-day lactation. Twins are the usual birth after about one hundred fifty days of gestation; typical lifespan is fifteen to eighteen years, though stresses of kidding or rut can cut that short.
Source: Goat
