Fill in the blank with correct during the 1) era, humans left the continent of 2) and spread across the globe. they were 3) , which means they moved from place to place in search of food. they survived by tracking game and collecting plants and berries, a practice called 4) . 1) paleolithic neolithic migration 2) europe africa north america 3) nomads homo sapiens hominids 4) migration hunting and gathering pastoralism