The narwhal’s tusk, which is essentially just a giant, swirly fang, grows disproportionately to the animal’s body size.

Scientists previously thought the narwhal’s trademark tusk helps males compete for mates, but new evidence suggests it may also have a role in foraging and play. CNN values your feedback 1.

For centuries, the purpose of a narwhal’s tusk has eluded explanation. Now, researchers suggest that these small whales use their tusks as sensory organs and speculate that sensing changes in ...

James Deutsch - Senior Content Coordinator, Smithsonian’s America at 250 Book Project Marine biologists may be able to tell us why the narwhal has a distinctive spiraling tusk, but their ...

You other narwhals can deny. I like big tusks and I cannot lie. You other narwhals can deny. X. Your Guide To a Better Future. Trending AI Tech ...

Narwhals and belugas have been evolving independently for at least 1 million years. They clearly can still breed with each other, but no one knows why or how often that happens.

Narwhal, the 10-week-old puppy with a tail growing between his eyes, at Mac’s Mission animal rescue in Cape Girardeau, Mo., on Wednesday. Credit ...