Narwhal, Unicorn of the Sea
Have you ever seen a unicorn? You might see one in the Arctic waters. Not a real unicorn, but a unicorn of the sea – a narwhal. A narwhal, which is a medium sized whale, earned its name from the “horn” protruding from its head. This is actually a tusk, a long tooth on its upper jaw. The tusk can grow up to 10 feet long, which can be half the length of its body. Scientist aren’t sure why male narwhals have a tusk. Is it to fight other males like a sword or is it a feature to impress female narwhals?