Hai Kun (SS-711), also known as Narwhal, successfully completed its first submerged sea trials on January 29, 2026.

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(CNN) — Scientists say they have the first recorded video evidence of narwhals using tusks not only to strike and manipulate fish during feeding but also engage in what appears to be playful behavior, ...

Narwhals have fascinated and confounded humans for centuries. Now an exhibition at Salem’s Peabody Essex Museum is diving into the mystery, history and science of these elusive tusked “unicorns of the ...

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 ...

Inuit hunters led researchers up a fjord in Greenland in pursuit of mysterious and shy narwhals. The geophysicists were hunting the sounds of the unique marine mammals called the “unicorns of the sea.

Wondering about the world's weirdest sea creatures? We've compiled this list of the 20 weirdest animals in the ocean to show ...

What has one horn, two crewmates and shares a name with its ride into orbit? "Calypso," the plush sequined narwhal that is flying with NASA astronauts Barry "Butch" Wilmore and Sunita "Suni" Williams ...