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Homologous vs Analogous Traits Evolution series pt1-002:58

Homologous vs Analogous Traits Evolution series pt1-0

Analogous structures

http://www.meritnation.com/ask-answer/question/what-is-analogous-organ-in-plants-explain-with-example/heredity-and-evolution/1789889


DefinitionEdit

Structures in different species that look alike or perform similar functions (e.g., the wings of butterflies and the wings of birds) that have evolved convergently but do not develop from similar groups of embryological tissues, and that have not evolved from similar structures known to be shared by common ancestors. Contrast with homologous structures. Note: The recent discovery of deep genetic homologies has brought new interest, new information, and discussion to the classical concepts of analogous and homologous structures.
http://www.pbs.org/wgbh/evolution/library/glossary/

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