Hunting and gathering was humanity's first and most successful adaptation, occupying at least 90 percent of human history. Following the invention of agriculture, hunter-gatherers have been displaced or conquered by farming or pastoralist groups in most parts of the world.
వేట, సేకరణ విస్తృతంగా జరగకుండా ఏది అడ్డుకుంది?
invention of agriculture