Narwhals are among the strangest animals in the oceans. They’re like unicorns of the sea, with the males growing a single ...

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Learn more about narwhal tusks and how their famous spiral shape is actually formed by two opposing spiral structures.

A 3D look inside a narwhal tusk uncovered a second spiral twisting in the opposite direction, creating a structure ...

Narwhals are truly unique. Most male narwhals have one, and so do some females; other narwhals even have two. Now researchers are using advanced imaging technology to look at the narwhal’s tusk in ...

The narwhal (Monodon monoceros), an iconic whale of remote Arctic waters, is widely known for its long, spiral tusk, which is really an elongated tooth. The tusk, which is predominantly found in males ...

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Researchers observed a number of surprising behaviors by the ivory-sporting whales during an expedition with drones in the Canadian High Arctic. By Kaleigh Rogers For an animal with an ivory appendage ...

Showy peacock feathers, extravagant elk antlers and powerful crayfish claws are just a few examples of the ostentatious animal extremes used to compete for and attract mates, a process called sexual ...