CBC Quirks & Quarks: How the unicorn of the sea uses its horn

The narwhal is a small whale distinguished by its long spiral horn — an elongated tooth.

Researchers have long speculated about what the ostentatious bit of dentition is actually for, but the elusive narwhal has, until now, been hard to study.

Now scientists, including Cortney Watt from Fisheries and Oceans Canada and University of Manitoba, have used drones to learn that the horn is used in several ways: to play, explore and forage. The research was published in the journal Frontiers in Marine Science.

To listen to the interview, please scroll down into this link from CBC Quirks and Quarks

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