Until a few years ago, the common idea among archiologists was G[ that early human I[ beings ] began H[ to practice I[ farming ] ] G[ because they had no choice ] ]. Experts claimed G[ that population growth led people H[ to push some of their group members out of the most productive areas G[ where it was easy H[ to hunt and gather plenty of food from the wild ] ] ] ]. I[ Living on the poorer edges of the rich environments ], I[ according to the old I[ thinking ] ], these people noticed G[ that seeds of wild plants often began H[ to grow G[ where they had been thrown away or accidentally dropped ] ] ]. They then realized G[ that I[ planting crops intentionally in these poor areas ] provided a more plentiful and reliable source of food than I[ hunting and collecting wild plants G[ that could be eaten ] ] ].