The whales, which have distinctively long tusks, were filmed in the Arctic chasing a fish in what seemed like a ...

Intriguing video of narwhals using their tusks to mess with fish has scientists speculating about what this behavior might ...

Coprolites can also contain clues about an animal's diet. For example, a spiral-shaped coprolite may have been left by an ancient shark or another kind of fish. This is based on the knowledge that ...

Narwhals, famous for their long, unicorn-like tusks, may use them for much more than display. Drone research has revealed ...