Anthropology Essay Example | Topics and Well Written Essays - 500 words - 5

Anthropology - Essay Example The first theory of a land bridge between Siberia and Alaska has been around for awhile. If an individual places a map of the world on a table, the continents look like they can fit together. The earth’s crust and upper mantle have plates. These plates slide and move. The moving of these plates cause earthquakes and tsunamis. It also causes land to break apart. Another factor is the ice age. When the great meltdown occurred a land bridge could have been submerged. This land bridge, Beringia, would have connected Siberia and Alaska. If that connection was made, then it is possible that the Native Americans migrated from Siberia. After reaching North America the Native Americas would have migrated south. Another theory is the coastal migration. The Native Americans would have sailed in canoes from Siberia to Alaska. Then the Native Americans would have migrated south to South America. Both continents would be populated before Columbus arrived. This theory would depend on the migrants knowing about the route. The passage would have to be during the summer, or when ice chunks were not present. This is the least likely of the scenarios. The final scenario is migrants came across the giant ice sheet. If an ice age was in full force, migrants might go south for a warmer climate. The trail would have gone toward westward and southward. If the ice shelves were as scientist think, than the ice would have melted without a trace. All three theories depend on one same element†¦food. Prehistoric people hunted for food and warmth from the furs. If the herds of caribou, wooly mammoth, or whatever was around at the time left, the hunter would have gone to search for prey. In the northern parts of Siberia planting a garden to provide for food year round is not an option. The hunters would have had to follow the food. As the animals’ natural instinct led them south, the hunters would have followed. Not only would the hunters