A narwhal can grow a single 10-feet tooth through its upper lip; scientists used 3D X-rays and 3 particle accelerators to discover how nature's only straight tusk stays straight

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A narwhal can grow a single 10-feet tooth through its upper lip; scientists used 3D X-rays and 3 particle accelerators to discover how nature's only straight tusk stays straight - The Times of India

A unicorn may be a mythical creature, but nature made something very similar under the Arctic ice. Wondering what?