A member of a North American people that inhabits Alaska, Nunavut and other northern regions of Canada, Greenland, and eastern Siberia. A semi-nomadic hunting and gathering people, they were noted for their adaptation to a harsh environment and were sometimes called Eskimos. Their languages belong to the Inuit-Aleut family and are divided into two main branches: the Inupik or Inuk (spoken in Greenland, Labrador, the Arctic coast of Canada, and northern Alaska) and the Yupik or Yuk (spoken in southern Alaska and Siberia). There are approximately 50,000 Inuit in Greenland, 35,000 in Alaska, 50,000 in Canada, and several hundred in Siberia.