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Platyhelminthes

(Encyclopedia)CE5 A. Planaria, representative of the phylum Platyhelminthes B. Internal anatomy of Planaria Platyhelminthes plătˌēhĕlmĭnˈthēz [key], phylum containing about 20,000 species of soft-bodied,...

crayfish

(Encyclopedia)crayfish or crawfish, freshwater crustacean smaller than but structurally very similar to its marine relative the lobster, and found in ponds and streams in most parts of the world except Africa. Cray...

Chinook, indigenous people of North America

(Encyclopedia)Chinook shĭno͝okˈ, chĭ– [key], Native American tribe of the Penutian linguistic stock. Altogether twelve main tribes spoke Chinook languages; all were in the Columbia River valley. The Chinook t...

fisher

(Encyclopedia)fisher, name of a large North American marten, Martes pennanti. This carnivorous, largely arboreal mammal is found in hardwood forests of Canada, the extreme N United States, and mountain ranges of th...

Anaximander

(Encyclopedia)Anaximander ənăkˌsĭmănˈdər [key], c.611–c.547 b.c., Greek philosopher, b. Miletus; pupil of Thales. He made the first attempt to offer a detailed explanation of all aspects of nature. Anaxima...

Jordan, David Starr

(Encyclopedia)Jordan, David Starr, 1851–1931, American scientist and educator, b. Gainesville, N.Y., M.S. Cornell, 1872, M.D. Indiana Medical College, 1875, and studied under Louis Agassiz at Penikese Island. He ...

Little Rock

(Encyclopedia)Little Rock, city (1990 pop. 175,795), state capital and seat of Pulaski co., central Ark., on the Arkansas River; inc. 1831. It is a river port and the administrative, commercial, transportation, and...

Lorenz, Konrad

(Encyclopedia)Lorenz, Konrad kônˈrät lôrˈĕnts [key], 1903–89, Austrian zoologist and ethologist. He received medical training at the Univ. of Vienna and spent two years at the medical school of Columbia Uni...

Kalidasa

(Encyclopedia)Kalidasa käˌlĭdäˈsə [key], fl. 5th cent.?, Indian dramatist and poet. He is regarded as the greatest figure in classical Sanskrit literature. Except that he was retained by the Gupta court, no f...

kookaburra

(Encyclopedia)kookaburra ko͝okˈəbûrˌə [key], common name for a squat, long-tailed Australian kingfisher, Dacelo novaeguineae. It is one of the largest birds of the family Alcedinidae (kingfisher family). Beca...