-Narwhals have a relatively restricted and specialized diet

-Their prey is predominantly composed of Greenland halibut, Polar and Arctic Cod, shrimp and Gonatus Squid. Additional items found in stomachs have included wolffish, capelin, skate eggs and sometimes rocks, accidentally ingested when whales feed near the bottom.

-Narwhals exhibit seasonal migrations, with a high return to preferred, ice-free summering grounds, usually in shallow waters.

-In the winter, they are found primarily in offshore, deeper waters under thick pack ice.

-Narwhals from Canada and West Greenland winter regularly in the pack ice of Davis Strait and Baffin Bay along the continental slope with less than 5% open water.

-Narwhals make some of the deepest dives ever recorded for a marine mammal, diving to at least 800 meters (2,625 feet) over 15 times per day, with many dives reaching 1,500 meters (4,921 feet).

-Narwhals normally congregate in groups of about five to ten individuals.