Figure 67. —Northern bottlenosed whales at sea off Nova Scotia. Note the prominent dorsal fin and the blotches of grayish-white coloration on the body. 

 Northern bottlenosed whales reach 32 feet (9.8 m) in overall length. {Photo by H. E. Winn.) 



Figure 68. -Views of the heads of male northern bottlenosed whales off Nova Scotia. Note the distinctive beak (right) and the bulbous forehead, features 

 which develop with age and are most pronounced in adult males. In the animal on the left, note also the low bushy blow emanating from the indented area on 

 the top of the head. (Photos by H. E. Winn.) 



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