Their diets consist of fish, squid, and shrimp

The majority of the prey that narwhals consume is found where open water meets sea ice that is linked to the land. One of the most interesting facts about narwhals is their preferred seafood includes Gonatus squid, shrimp, arctic and Arctic cod, and Greenland halibut.

Researchers know little about the feeding habits of these animals because they catch the majority of their food in the icy, dark waters of the Arctic by diving. The first investigation of narwhal winter feeding patterns wasn't even conducted until 2006 when researchers found that narwhals have access to very limited food throughout the year. The only prey item found in the stomachs of 121 narwhals in the fall was a Gonatus squid.