Narwhals are among the most mysterious animals in the ocean. Known as the “unicorns of the sea,” these Arctic whales carry a long spiral tusk that is actually an enormous tooth growing through the ...

"This book is the companion to the exhibit, "Narwhal: Revealing an Arctic Legend" at the Smithsonian Institution's National Museum of Natural History, opening August 2017."-- Verso of title page. ANTH ...