Bowheads live in icy Arctic seas. A smooth back with no dorsal fin, a blowhole placed in a high crown at the top of the head, and a thick layer of blubber for insulation equip them for this environment. Learn more about the Balaena mysticetus, more commonly known as a Bowhead Whale, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.