Baleen

Definition and stakes

Portrait of Roy Chapman Andrews Roy Chapman Andrews,  Whale hunting with gun and camera (1916)

“ Probably no mammalian adaptation for the securing of food is more remarkable than the whale’s baleen. It is almost unbelievable that an animal which once had teeth could, as its food changed, replace them by a complicated straining apparatus such as the whalebone. The baleen is an epidermal growth and is in reality merely an exaggeration of the transverse ridges present in the mouths of land mammals. ”
Source: Gutenberg

David Keller Caldwell,  Whales, Dolphins, and Porpoises of the Western North Atlantic

“ The differences between baleen and toothed whales are easy enough to see in animals washed up on the beach or maintained in a tank at a zoo or aquarium. But since an animal at sea can seldom be examined that closely, its most obvious characteristics may be its overall size, the presence or absence of a dorsal fin, its prominent coloration or markings, its general behavior, or its swimming, blowing, and diving characteristics. ”
Source: Gutenberg

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