(1) Then in October 2004 the U.S. Fish and Wildlife Service listed the beluga sturgeon as endangered.(2) The blue whale, the beluga and the walrus all have this protective layer of fat which serves as insulation.(3) The beluga or white whale is a medium-sized odontocete, widely distributed throughout Arctic waters.(4) Aquatic mammals that live in the waters off the coast include walrus, ringed seals, bearded seals, beluga , narwhal, and various other whales.(5) We were relieved not to have had to use our borrowed anti-polar bear rifle, but disappointed not to see any bears, walruses, narwhal or beluga .(6) Unregulated overfishing, loss of spawning habitat, and poaching to supply the black market beluga caviar trade have contributed to a notable decrease in the wild beluga sturgeon population.(7) Three dark mounds sit on my plate, glistening moistly: a fat teaspoon each of beluga , osetra and sevruga caviar.(8) Some of the species found here include the walrus, polar bear, beluga , narwhal, bearded seals, harp seal, harbour seal, ringed seal, bowhead whale, ivory gull, and some migratory birds.(9) While the cod, pollack and haddock may have all but disappeared, you stand a good chance of spotting porpoises, minke whales and even the odd beluga .(10) Weary fishermen stand waist deep in chilly water and strain every muscle, fighting to subdue the gigantic beluga , great white sturgeon, which they have netted in the muddy Ural river.(11) Arctic waters are renowned for such marine mammals as bowhead and beluga whales and ringed, spotted and bearded seals.(12) The beluga sturgeon - the biggest species - has been known to grow up to five metres in length and weigh as much as a ton.(13) Occasionally they even pluck a walrus, beluga whale, or narwhal from the watery depths below the pack ice.(14) Caviar in tins and jars range from salmon's red (ripe and briny) at 99 roubles for a 113-gram can to the luscious, silvery-grey beluga at 500 roubles.(15) These mammals include beluga whales, narwhals, and ring seals.(16) The Antarctic lacks small resident toothed whales like the beluga and the narwhal of the Arctic.