(1) The tusk of whale or narwhal is spirally curved, and can measure up to 2.5 m in length.(2) For centuries observers have been fascinated and mystified by the majestic spiral tusk grown by the small Arctic whale known as the narwhal .(3) A great white shark with a narwhal horn and legs seems to be attacking the glass.(4) Furthermore, unlike the curved teeth of elephants and warthogs, the narwhal tooth is nature's only straight tusk.(5) ├ö├ç├┐The extraordinary tusk of the narwhal has fascinated and puzzled scientists for hundreds of years,├ö├ç├û according to the expedition's Web site.(6) In fact it was a narwhal tusk, or possibly rhinoceros horn.(7) The exhibit, showcasing such images as kayaks, walruses, seals and narwhal , reflects the close relationship between Inuit and water.(8) The tusked narwhal , white beluga whales and elusive bowhead whale all live off the northern part of this island.(9) Occasionally they even pluck a walrus, beluga whale, or narwhal from the watery depths below the pack ice.(10) Strictly speaking, the term should be applied only to the tusks of elephants, although a wider definition includes the teeth of the hippo, narwhal whale and the walrus.(11) Aquatic mammals that live in the waters off the coast include walrus, ringed seals, bearded seals, beluga, narwhal , and various other whales.(12) The Antarctic lacks small resident toothed whales like the beluga and the narwhal of the Arctic.(13) The narwhal is a smaller whale that lives most of its life north of the Arctic Circle.(14) His narwhal tusks stand in the attic near a loose pile of taxidermic heads.(15) Dolphins and porpoises are examples of odontocetes, as are belugas, narwhals , killer whales, sperm whales, and beaked whales.(16) Polar bears are seagoing hunters that roam vast areas of the Arctic, pursuing a movable feast of seals, narwhals , beluga whales, and walruses.