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• Select Evolution, Parallel

  1

  Evolution, Parallel

  Editors:Katherine H. Nemeh and Jacqueline L. LongeFrom:The Gale Encyclopedia of Science (Vol. 3. 6^th ed.)

  2021448 words Topic overview 1320LParallel evolution occurs when unrelated organisms develop the same characteristics or adaptive mechanisms due to the nature of their environmental conditions. Stated differently, parallel evolution occurs when similar...
• Select Evolution

  2

  Evolution

  Author:Susan AndrewFrom:The Gale Encyclopedia of Science (Vol. 3. 6^th ed.)

  20212,931 words Topic overview 1350LEvolution is the natural process by which all living things have descended with modifications from shared ancestors, shaped largely by natural selection. It involves change in the genetic constitution of populations over...
• Select Competition

  3

  Competition

  Author:Bill FreedmanFrom:The Gale Encyclopedia of Science (Vol. 2. 6^th ed.)

  20211,449 words Topic overview 1410LCompetition is biological interaction among organisms of the same or different species associated with the need for a common resource that occurs in a supply that is limited relative to demand. Competition occurs when...
• Select Mayr, Ernst (1904-)

  4

  Mayr, Ernst (1904-)

  From:Encyclopedia of World Biography

  19981,595 words Biography 1540LBIOGRAPHICAL ESSAY The German-born American evolutionary biologist Ernst Mayr (born 1904) helped lead the modern synthesis of evolutionary theory. Mayr made major contributions to ornithology, evolutionary theory and...
• Select Dobzhansky, Theodosius (1900-1975)

  5

  Dobzhansky, Theodosius (1900-1975)

  From:Encyclopedia of World Biography

  19981,546 words Biography 1620LBIOGRAPHICAL ESSAY Theodosius Dobzhansky (1900-1975) synthesized field study and laboratory experimentation in the study of natural selection, laying a foundation for Darwinian evolutionary theory. Few biologists...