it is likely that the island was known to Pre-Columbian Norse explorers from Greenland and Iceland and that it was the location of Helluland, spoken of in the Icelandic sagas (the Grœnlendinga saga and the Saga of Erik the Red, Eiríks saga rauða).separate Baffin Island from the rest of the archipelago to the west and north.
Arctic foxes are scavengers, and often follow polar bears to get their leavings.
On Baffin Island, Arctic foxes are sometimes trapped by Inuit, but there is not a robust fur industry. Their fur is pure white in winter and molts to a scruffy dark grey in summer.
Another peak of note is Mount Asgard, located in Auyuittuq National Park, with an elevation of 2,011 m (6,598 ft).
Mount Thor, with an elevation of 1,675 m (5,495 ft), is said to have the greatest purely vertical drop of any mountain on Earth, at 1,250 m (4,100 ft).
Shore birds include the phalarope, various waders (commonly called sandpipers), murres including Brünnich's guillemot, and plovers.
Three gull species also nest on Baffin Island: glaucous gull, herring gull and ivory gull.
Polar bears mate approximately every year with from one to three cubs being born around March.
Female polar bears may travel 10–20 km (6–12 mi) inland to find a large snow bank where they dig a den in which to spend the winter and later for giving birth.
The Baffin Mountains run along the northeastern shore of the island and are a part of the Arctic Cordillera.