Narwhal Biology and a Tusk with a Twist

The narwhal and its extraordinary tusk have inspired legends, intrigued Arctic explorers and baffled the world of science. How did this marine mammal evolve such an incredible tooth? What can narwhals tell us about biodiversity and adaptation in a changing Arctic? Join Harvard and Smithsonian research scientist Martin Nweeia on his decades-long quest to answer these questions, and discover just how extraordinary this “unicorn of the sea” really is.