Severnaya Zemlya appeared to the north of the archipelago. Although located not far off the northern coast of Russia, nested among Arctic ice-locked waters, the archipelago that is now known as Severnaya Zemlya was not formally recorded until the 20th century. Earlier explorers deemed that there was a land mass in the general area of the archipelago, such as in the report by Matvei Gedenschtrom and Yakov Sannikov made in 1810 at the time of their exploration of the New Siberian Islands. Later in the 19th century Adolf Erik Nordenskiöld during the Vega Expedition sailed very close to this land in 1878
Franz Josef Land most common, although it breeds in the White Sea. Slightly less common is the bearded seal. Walruses were previously hunted, dramatically reducing the formerly abundant species. They have been internationally protected since 1952 and their numbers have since been on the rise, with between one and three thousand walruses living in the archipelago. The population is common with Svalbard and northern Novaya Zemlya. Minke whales, humpback whale, and beluga whales are commonly seen around the island, and less commonly orcas and narwhales, with the archipelago being located on the northern edge of their summer range. Fin whales were newly confirmed