darwinian theory


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Related to darwinian theory: Darwinian evolution

dar·win·i·an the·o·ry

the theory of the origin of species and of the development of higher organisms from lower forms through natural selection (survival of the fittest in the struggle for existence), and of the evolution of humans and apes from a common ancestor.
See also: darwinian evolution.

dar·win·i·an the·o·ry

(dahr-winē-ăn thēŏr-ē)
Theory of the origin of species and of the development of higher organisms from lower forms through natural selection (survival of the fittest in the struggle for existence), and of the evolution of humans and apes from a common ancestor.
See also: darwinian evolution

Darwin,

Charles R., English biologist and evolutionist, 1809-1882.
darwinian ear - an auricle in which the upper border is not rolled over to form the helix, but projects upward as a flat, sharp edge.
darwinian reflex - the tendency of young infants to grasp a bar and hang suspended.
darwinian theory - the theory of the origin of species and of the development of higher organisms from lower forms through natural selection.
darwinian tubercle - a small projection from the upper end of the posterior portion of the incurved free margin of the helix. Synonym(s): auricular tubercle
References in periodicals archive ?
"Darwinian theory has yet to explain adequately the fact of sex," write Hamilton and several colleagues from the University of Michigan in Ann Arbor in the May PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES (Vol.87, No.9).
Can Darwinian theory explain the rapid drop in birthrate--far below the rate of replacement--among sophisticated Americans and Western Europeans as a whole today?
Biologist David Sloan Wilson, in his recent book Darwin's Cathedral, shows how a Darwinian theory of human social evolution can support the moral utility of religion in bringing individuals into well-organized groups.
The 19th-century Darwinian theory of evolution gave credence, then, not just to the evolution of life on Earth, but also to the physical evolution of worlds in a cosmic setting.
"The Institute keeps asking for flaws--weaknesses and criticisms--of Darwinism and Darwinian theory to be presented in the textbooks, but the books already contain this information."
She is less successful in probing the implications of his ideas, but even here she provides clues as to why certain debates continue to be so central to Darwinian theory.
Institute critics also say the group is being disingenuous by claiming to merely want to instruct students about weaknesses in Darwinian theory. The underlying theory of evolution, they point out, is no longer considered controversial in the scientific community.
That was a link that was never made before." Such a link between genetic variation and colony behavior is critical to Darwinian theory, he says, because "then you have the raw material upon which natural selection can act" to change worker behavioar and colony organization through the course of evolution.
Unable to get "creation science" taught alongside the Darwinian theory, Religious Right organizations have shifted gears and are now working to undermine evolutionary instruction through various means.
Careful examination of the evidence for Darwinian theory should be encouraged.
According to the Darwinian theory of evolution, all domesticated quadrupeds are descendants from a single species having erect ears.