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porpoise

(Encyclopedia) porpoise, small whale of the family Phocaenidae, allied to the dolphin . Porpoises, like other whales, are mammals; they are warm-blooded, breathe air, and…

Brewer's: Fat as a Porpoise

The skin of the porpoise is nearly an inch thick, and under it is a layer of fat somewhat thicker, and yielding oil of the finest quality. Source: Dictionary of Phrase and Fable, E.…

Glacier Bay National Park and Preserve

(Encyclopedia) Glacier Bay National Park and Preserve, SE Alaska, near Juneau. The park (3,224,840 acres/1,305,603 hectares) and the preserve (58,406 acres/23,646 hectares) were…

beluga

(Encyclopedia) beluga bəlo͞o´gə [key] or white whale, small, toothed northern whale , Delphinapterus leucas. The beluga may reach a length of 19 ft (5.8 m) and a…

whale

(Encyclopedia) whale, aquatic mammal of the order Cetacea, found in all oceans of the world. Members of this order vary greatly in size and include the largest animals that have ever…

mammal

(Encyclopedia) mammal, an animal of the highest class of vertebrates, the Mammalia. The female has mammary glands, which secrete milk for the nourishment of the young after birth. In…

dolphin

(Encyclopedia) dolphin, aquatic mammal, any of the small toothed whales of the family Delphinidae, numbering more than 50 species. These include the true, or beaked, dolphins,…

sonar

(Encyclopedia) sonar sō´när [key], device used underwater for locating submerged objects and for submarine communication by means of sound waves. The term sonar is an acronym…

conservation of natural resources

(Encyclopedia) conservation of natural resources, the wise use of the earth's resources by humanity. The term conservation came into use in the late 19th cent. and referred…