Baffin Island Greenland to Baffin Island for the summer. Migrating at speeds of , they all come up to breathe at the same time, then dive and swim up to before surfacing again. They migrate in large pods consisting of a hundred or more seals, to within of the shoreline, which they then follow, feeding on crustaceans and fish. Walrus, which actually do not migrate far off land in the winter. They merely follow the "fast ice", or ice that is solidly attached to land, and stay ahead of it as the ice hardens further and further out to sea. As winter
Baffin Island in the middle of the island, has been retreating since at least the early 1960s, when the Geographical Branch of the then-Department of Mines and Technical Surveys sent a three-man survey team to the area to measure isostatic rebound and cross-valley features of the Isortoq River. Conversely, in the 1970s parts of Baffin Island failed to have the usual ice-free period in the summer. The island has been continuously inhabited by Inuit peoples for centuries. In September 2008, "Nunatsiaq News" reported that a team led by Dr. Patricia Sutherland of the Canadian Museum of Civilization had found archaeological remains of