Videos show narwhals using their tusks in several ways, including prodding and flipping a fish. It’s the first reported evidence of the whales playing.

The long, spiral tusks of narwhals could be used by these Arctic whales to stun or even kill prey, according to wildlife ...

Multiple behaviors were observed that indicate narwhal tusks — like Swiss Army knives — serve as multi-purpose tools. While ...

Narwhal tusks are the stuff of legends — literally. Growing up to ten feet long, they were once believed by some medieval ...

So it's mesmerizing, really, in some ways." Hundreds of years ago, seafarers brought these tusks home and passed them off as unicorn horns. "It almost seems like it was the strongest proof that ...