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 ...

SHARON, Conn. (AP) — The narwhal is one of the most mythical and unusual members of the whale family, with its left front tooth, or tusk, that juts about 8 feet into the air, resembling an ivory sword ...

It?s about a quart,” she said. If the secrets of spit don?t make your mouth water, you might want to peruse the newest exhibit, The Narwhal: A Whale of A Tooth, now on display through August.

It’s got a single tooth – one that shoots straight out of its head. But this tooth isn’t used for chomping and chewing. It's more like a spear. And much like the creature itself, it's a thing of ...