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.

Martin Nweeia is a modern Renaissance man. He has a degree in English and biology, a working dental practice, and a side interest in zoology and anthropology; he has composed for documentary films and ...

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 ...

Researchers have long debated what the 10-foot-long tooth that erupts from a narwhal’s head is actually for. Perhaps it has something to do with sexual selection, and males with longer horns attract ...

We'll hear next about Arctic waters and a creature sometimes called the unicorn of the sea. It's the narwhal, a whale with a long, straight tusk, which was sometimes sold as a unicorn horn to gullible ...

As much as I applaud scientific research that reveals nature’s secrets, I feel a sense of satisfaction when some natural mysteries remain mysteries. The narwhal is my favorite example. Narwhals are a ...