convergent evolution

noun
the appearance of apparently similar structures in organisms of different lines of descent.

Origin:
1965–70

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Dictionary.com's 21st Century Lexicon
Main Entry:  convergent evolution
Part of Speech:  n
Definition:  See divergent evolution
Dictionary.com's 21st Century Lexicon
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American Heritage
Medical Dictionary

convergent evolution n.
See convergence.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Cultural Dictionary

convergent evolution definition


The development through evolution of similar features by organisms with distinctly different ancestors. A common example of this is the evolution of wings in insects and birds.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Moreover, the trait has arisen independently in several lineages of mammals-including some lemurs-through convergent evolution.
The similarity of shapes, which isn't really all that great, may well be the result of convergent evolution.
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