The Inuit are indigenous people who live in the Arctic and subarctic regions of North America (parts of Alaska, Canada, and Greenland). The ancestors of the present-day Inuit are culturally related to Iñupiat (northern Alaska) and Yupik (Siberia and western Alaska), and the Aleut, who live in the Aleutian Islands of Siberia and Alaska. The word "Eskimo" has been used to encompass the Inuit and Yupik, and other indigenous Alaskan and Siberian peoples, but this usage is in decline.