Beringia is a region in the northern hemisphere that encompasses the land and sea area in and around the Bering Strait, which separates Siberia in Russia from Alaska in the United States. It is known for its unique geological and ecological history, as during the last Ice Age, Beringia served as a land bridge connecting Asia and North America. This allowed for the migration of plants, animals, and humans between the two continents. Research in Beringia often focuses on understanding the prehistoric cultures, ecology, and climate of the region, as well as the genetic and cultural connections between indigenous peoples of Siberia and Alaska.