How do narwhal tusks grow?

We’re back! We’ve officially moved into our new headquarters! Come unpack with us and get a tour while we fill you in on some big news. Plus, new episodes of Brains On coming later this month and new Smash Boom and Forever Ago after that. If you want to support the show or drop u ...  Show more

We're moving the Brains On Universe Headquarters, and that means we have to stop putting out new episodes until we get settled. We know: not cool. But, our new home is going to be bigger and better and the absolute BEST. We can't wait until it's ready for you to visit. In the mea ...  Show more

Narwhals are whales, and super cool ones at that. But that cool thing coming out of their heads is a tusk, not a horn. Which means it’s a tooth! And it’s the only known spiral tooth to boot! In this episode, we learn all about narwhals (what that tusk is for and how they’re conne ...  Show more

Narwhals, recognizable by their large single tusk, make distinct sounds that are now being analyzed in depth by researchers. Learn more about your ad choices. Visit megaphone.fm/adchoices 

Narwhals, recognizable by their large single tusk, make distinct sounds that are now being analyzed in depth by researchers. Learn more about your ad choices. Visit megaphone.fm/adchoices 

The term “narwhal” derives from the old Nordic for “nár + hvalr”, meaning corpse + whale, which, for these animals, is quickly becoming prophetic. Climate change, with its accompanying increase in human marine activity, has led to the Arctic Ocean becoming noisier. As narwhal rel ...  Show more