Past research has suggested that male and female narwhals might have slightly different diets, which "certainly piqued some curiosity" about what role tusks might have in that difference, says Watt.

He said narwhals are likely adjusting their diet to account for environmental changes, such as rising ocean temperatures and increased human shipping activity in the area.

Narwhals are known for their distinctive tusks - essentially giant teeth - that can grow up to 10 feet long. Experts have long suspected they play a role in mating, but their true purpose remained ...

Narwhal tusks are primarily found in males and can grow up to 10 feet long. The unusual feature has led to the animal's nickname of "unicorns of the sea" and is believed to play a role in mating ...

The Arctic's iconic narwhal, renowned for its long, spiral tusk, is one of nature's most fascinating creatures. Yet, few have witnessed how these elusive animals use their tusks in the wild. O ...

A new study from Florida Atlantic University is shedding light on the narwhals’ many explorations, the way they use their tusks to seek out fish, and how they like to play.

Past research has suggested that male and female narwhals might have slightly different diets, which "certainly piqued some curiosity" about what role tusks might have in that difference, says Watt.