Compléter Evolution and MigrationVersion en ligne Fill in the blanks. par Kateryna Forynna 1 regions survive monumental deserts generations astounding circumstances migration adapt remarkably features move The from Asia to North America across the Bering Strait was a event in human history . The process of overspreading the Americas took more than 1 , 000 years , or 30 . This process was fast - about 10 miles per year , on average . The Americas were populated at an pace , when one considers the physical limits of the human body and the physical of the American continents . Legs of humans can only so fast under the best of , and they work even slower over mountain passes or . Populations spread through the diverse of the Americas ( grasslands , eastern forests , coastal swamps ) and needed to to their new environments . The migrants' lifestyle had evolved over the years to that of professional nomads ensuring that they would find the resources needed to .
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