Like walruses and elephants, male narwhals (Monodon monoceros) grow tusks; these are modified teeth. In narwhals, the left tooth erupts from their head, reaching more than 8-feet-long in some ...

2. A narwhal’s tusk is actually a tooth. The narwhal’s scientific name, Monodon monoceros, refers to their singular characteristic and means “one tooth, one horn.” The narwhal’s tusk ...

walruses (Odobenus rosmarus), polar bears (Ursus maritimus), narwhals (Monodon monoceros) and beluga whales (Delphinapterus ...

The paper, by T.M. Williams at University of California, Santa Cruz in Santa Cruz, Calif., and colleagues was titled, "Paradoxical escape responses by narwhals (Monodon Monoceros)." ...