The document provides information about the polar region known as the Tundra. It describes the Tundra as a very cold region with continuous nights or days for many months. It has ice and snow covering land, streams, rivers, and seas. The indigenous people who live in the Tundra region are the Eskimos. They have adapted to the harsh climate by developing skills in hunting seals, fishing, and building shelters made of ice or animal skins. Their way of life depends on the extreme seasonal variations between long winters and short summers. Contact with outsiders beginning in the late 19th century introduced changes but also diseases that impacted the Eskimo populations.