Add Yahoo as a preferred source to see more of our stories on Google. A narwhal. via Animalia In a warming Arctic, noise from growing shipping traffic is interfering with the ability of narwhals to ...

For most of their evolutionary history, narwhals have relied more on sound than sight to survive in the Arctic’s dark icy waters. The speckled toothed whales—sometimes referred to as “unicorns of the ...

Narwhals are famous for their long “horn,” but it’s not actually a horn at all. It’s a single tooth that can grow up to 10 feet long and contains millions of nerve endings. Scientists believe it may ...