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.

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ...

One has been depicted with two tusks. Narwhals, Monodon monoceros, are toothed whales that live mostly in Arctic coastal waters and inlets. Male and female narwhals only have two teeth, which are both ...

scientists have long struggled to understand how narwhals actually use these long, spirally protrusions. The tusks, which are actually an elongated tooth that typically belong to males of the ...

The tooth, Laidre patiently explains, cannot be essential because most females survive without one. In 2004, Greenland set narwhal-hunting quotas for the first time, despite some hunters' protests ...

Videos show narwhals using their tusks in several ways, including prodding and flipping a fish. It’s the first reported evidence of the whales playing.

What are the strangest things found in the deep sea? Let's take a look. Narwhals have a tooth that comes out of their head that looks like a long horn, akin to that of unicorns Narwhals have been ...

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, ...

Footage even captured one instance of a narwhal interacting with a fish by repeatedly nudging it with its tusk — which is actually a giant tooth — without attempting to eat it. When ...

Unlike our own teeth, the narwhal tusk is soft on the outside and gradually gets hard and dense on the inside. It’s thought that narwhals could be the origin of the unicorn myth. The great ...

Drone footage has captured narwhals using their iconic long tusks ... revealed that the spiralling tusks are the mammal’s canine teeth that are pushed out through their lips.