Since he was a child, Martin Nweeia, DMD (DEN ’84), has been fascinated with teeth—from the human variety to the 9-foot spear-shaped tusk that grows out of the head of the narwhal, an Arctic whale.

Scientists are still on the fence about the evolutionary purpose of narwhal tusks, however there are a number of prevailing theories about their purpose. Richard says, 'Although the tusks don't appear ...

In narwhals, the left tooth erupts from their head, reaching more than 8-feet-long in some individuals. The tusk grows out in a spiral pattern, giving the appearance of a sea-dwelling unicorn. Credit ...

The most extraordinary feature of the narwhal is the long, spiral tusk which always has a left- handed spiral. No one is sure why it twists this way. The tusk, which measures up to 3m in length ...

2. A narwhal’s tusk is actually a tooth. The narwhal’s scientific name, Monodon monoceros, refers to their singular ...

Writing on Facebook, Ms Steffen said Narwhal, named after a species of whale that has a single large "tusk", had visited the vet on Tuesday. And X-rays had showed his secondary tail, about a third ...

Narwhals are an Arctic-bound whale species famous for their tusks. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing ...

Despite the mystery, narwhals are in focus, because a 5-foot tusk was used this month by a Londoner to help stop a terrorist attack on London Bridge. They may be rare, but they're useful.

Developed by Rick Harrison, Narwhal is a clean and fast Reddit client for iOS 7 that I’ve been using on my iPhone for the past month to check on the Reddit front page and my favorite sub-reddits. I’ve ...

In the late stages of the 16th century, European explorers reached the Arctic and came across the narwhal, a species of whale ...

WWF is supporting a new project to track narwhals, Arctic whales best known for the long tusk that projects forward from their faces. Canada - WWF is supporting a new project to track narwhals, Arctic ...

A man has described how he fought off the London Bridge knifeman with a narwhal tusk before pinning him to the ground to help end the attack. Darryn Frost, 38, was seen in pictures confronting ...