The purpose of the narwhal's tusk, a ten-foot long tooth that grows from the head, has long been a matter of debate for scientists. Recently, however, the narwhal's tusk has been analyzed for information regarding the narwhal's habitat, the Arctic region, and how climate change is affecting their home, their diet, and their ability to adapt to catastrophic change.
Learn more about the narwhal, and what their tusk has to say about their rapidly changing environment, here: https://www.wired.com/story/narwhal-tusks-tell-a-troubling-tale/?utm_source=WIR_REG_GATE
