We finally know why narwals have tusks (Hint: It has to do with sex) | CNN
From Narwhals to -- Unicorns?! - THE WHALING MUSEUM
One big tooth: Let's talk about the narwhal's tusk
Narwhal Tusk Facts: Did You Know? | Arctic Kingdom
Narwhal Facts and Pictures
Narwhal Symbolism & Meaning | Spirit, Totem, & Power Animal
About Narwhals | eloka-arctic.org
Narwhal, facts and photos
Narwhal - Wikipedia
Unicorn of the Sea: Narwhal Facts | Stories | WWF
Satellites Stalk Narwhals From Space, But They Still Keep Secrets | Sierra Club
Narwhal FAQ – Kristin Laidre
How the narwhal got its tusk: to impress the ladies
Size matters! Female narwhals are attracted to males with the biggest tusks | Daily Mail Online
How Narwhals Work | HowStuffWorks
The Narwhal's Mysterious Tusk | National Geographic - YouTube
Meet the world's weirdest whale | Smithsonian Institution
Baby Narwhal: 10 Incredible Narwhal Fact & Incredible Pictures - AZ Animals
Do narwhals kill with their horns? - Quora
Why a Tusk? The real-life unicorns of the sea and the tusks that make them famous | Smithsonian Ocean
Narwhal: 13 Top Facts for the Unicorn of the Seas - AZ Animals
Unicorn of the Sea: Narwhal Facts | Stories | WWF
Narwhal, Unicorn of the Sea | Euclid Public Library
Why Do Narwhal's Have a 'Unicorn' Horn? - YouTube
Unicorn Whale Narwhal - 23 Epic Narwhal Facts
