...Even the whales of the deep sea, the walrus ofthe arctic regions, the condors of the Andes and alligators of theEverglade morasses are no exception to the universal rule... 
William T. Hornaday 「Our Vanishing Wild Life」
...Three families—1st, Herbivorous Cetacea,Manatees, Dugongs; 2nd, Ordinary Cetacea, Porpoises; 3rd,Balænidæ, Whales...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...)
The cervical vertebræ are movable, and not ankylosed, as in manyof the cetacea; the cæcum is small; the blow-hole is a narrow slit,not transverse as in other whales, but longitudinal...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...Theseriver Dolphins naturally come after the extinct Phocodontia orseal-toothed whales, and bear considerable resemblance in thedentition to the extinct genus Squalodon...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
..."In the fin whales (Balænoptera) it is transverselyoval or trilobate, with a projecting backward xiphoid process"(Professor Flower)...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The cetacea have been divided into the Denticete, or Toothed Whales,and the Mysticete, or Whalebone Whales...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...Many of them grow to enormous size, far exceeding any of the baleenwhales...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The thoroughly marine whales have discardedfurs and adopted a smooth and slippery skin,well adapted to movement through the water,relying for warmth on a thick undershirt ofblubber...
Frederic A. Lucas 「Animals of the Past」
...These animals arecalled whalebone whales because when fully formed insteadof teeth they have up to 800 or more plates of baleen orwhalebone depending from the roof of the mouth...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...In addition, toothed whales have only asingle blowhole...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...For that reason, regardless of their scientificrelationships, all the whales, dolphins, and the one porpoisecovered in the main text of this guide are divided into threegroups...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...At sea, these whales often appear very similar and mustbe examined carefully before they can be reliably identified...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Two of these, thebowhead or Greenland whale, and its more widely distributedclose relative the right whale, are baleen whales...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Blue whales are relatively shallow feeders, feeding asthey do almost exclusively on "krill" (small shrimplikecrustaceans), most of which are distributed in the surface330 feet (100 m)...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...At sea, blue whales may be confused with fin whales(p...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Though blue whales have been reported from the pack iceto Cristobal Harbor, Panama Canal Zone, their normal rangein the western North Atlantic is more limited...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...All individuals are dark gray to brownish black on theback and sides with none of the mottling present on bluewhales and are rarely as heavily scarred as sei whales...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
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