The long, spiral tusks of narwhals could be used by these Arctic whales to stun or even kill prey, according to wildlife researchers who have spied on these elusive creatures using drones. They ...

The cold waters of the Arctic are home to an unusual whale that you might have heard of, the narwhal. Narwhals have a long, sharp tusk that juts out of their heads. As NPR's Nell Greenfieldboyce ...

Intriguing video of narwhals using their tusks to mess with fish has scientists speculating about what this behavior might mean. The long, spiral tusks of narwhals could be used by these Arctic whales ...