“It almost seems like it was the strongest proof that unicorns really did exist,” says O’Corry-Crowe. It’s now clear that the ...

Protruding up to 10 feet from the whale’s head, the spiral of ivory has earned these creatures the nickname “unicorn of the sea.” But what exactly narwhals do with these tusks is still being studied, ...

It's now clear that the tusks play a role when male narwhals compete for mates. A long tusk tells females that a male is large and successful, and the length of a male's tusk corresponds to the ...

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.

"It almost seems like it was the strongest proof that unicorns really did exist," says O'Corry-Crowe. It's now clear that the tusks play a role when male narwhals compete for mates. A long tusk tells ...