Gourt > Science > Science in Society > Science and Religion > Evolution
In biology, evolution is the change in the heritable traits of a population over successive generations, as determined by the shifting allele frequencies of genes. Evolution is ultimately the source of the vast diversity of life: all contemporary organisms are related to each other through common descent, products of cumulative evolutionary changes over billions of years. Over time, new species evolve from existing species through speciation, and other species become extinct, resulting in the ever-changing biological world reflected in the fossil record.
The basic mechanisms that produce evolutionary change are natural selection (which includes ecological and sexual selection) and genetic drift acting on the genetic variation created by mutation, genetic recombination and gene flow. Natural selection is the process by which individual organisms with favorable traits are more likely to survive and reproduce. If those traits are heritable, they pass them to their offspring, with the result that beneficial heritable traits become more common in the next generation. Given enough time, this passive process can result in varied adaptations to changing environmental conditions.
The modern understanding of evolution is based on the theory of natural selection, which was first set out in a joint 1858 paper by Charles Darwin and Alfred Russel Wallace and popularized in Darwin's 1859 book The Origin of Species. In the 1930s, scientists combined Darwinian natural selection with the theory of Mendelian heredity to form the modern evolutionary synthesis, also known as "Neo-Darwinism". The modern synthesis describes evolution as a change in the frequency of alleles within a population from one generation to the next. This theory has become the central organizing principle of modern biology, relating directly to topics such as the origin of antibiotic resistance in bacteria, eusociality in insects, and the staggering biodiversity of the living world.
More on [ Evolution ]
@v_shakthi Evolution of Horror #Movie #Poster Designs: 1922 â 2009 http://nxy.in/ivrq4
BillNigh (Bill Nigh) Fri, 25 Dec 2009 14:05:41 -0000
@v_shakthi Evolution of Horror #Movie #Poster Designs: 1922 – 2009 http://nxy.in/ivrq4
#evolution Creative Commons evolutionary theory looks for borrowers ... http://bit.ly/75AhSP
sykeme (Ben Sykes) Fri, 25 Dec 2009 14:04:10 -0000
#evolution Creative Commons evolutionary theory looks for borrowers ... http://bit.ly/75AhSP
Sale: Golf Evolution T-shirt - http://bit.ly//SGzwZ - #zazzle #xmas
evolution88 (evolution eighty) Fri, 25 Dec 2009 14:03:22 -0000
Sale: Golf Evolution T-shirt - http://bit.ly//SGzwZ - #zazzle #xmas
http://www.pastemagazine.com/articles/2009/12/the-evolution-of-the-hipster-2000-2009.html las tendencias de la década - pasada
fitzroya (Reinhard Fitzek) Fri, 25 Dec 2009 14:02:55 -0000
http://www.pastemagazine.com/articles/2009/12/the-evolution-of-the-hipster-2000-2009.html las tendencias de la década - pasada
Evolution of 50 Corporate Brand logos http://richbugger.wordpress.com/2009/12/19/evolution-of-50-corporate-logos/
marketing_stuff (marketing post) Fri, 25 Dec 2009 14:02:41 -0000
Evolution of 50 Corporate Brand logos http://richbugger.wordpress.com/2009/12/19/evolution-of-50-corporate-logos/
RT @ aplusk aplusk: the evolution of elves - http://twa.lk/XIfns
socialmedia6666 (social media) Fri, 25 Dec 2009 14:01:09 -0000
RT @ aplusk aplusk: the evolution of elves - http://twa.lk/XIfns
Brief History of the Conflict between Creationists and Evolutionists - Includes some pivotal events in the last two centuries that changed what most scientists believed about origins, and what was taught in public schools.
Meta Description: [ What the Bible says about abortion ]
CERD: Creation/Evolution Reference Database - Searchable bibliography of primarily print sources related to the Creation/Evolution debate. Sources are drawn from the literature on both sides of the debate and compiled and annotated by Thomas Moore.
Creation vs. Evolution - A collection of answers and links about the debate between evolution and creation.
404
Evolution Resources (AAAS) - Resources on the scientific content of evolutionary theory and its place in education, and historical, philosophical, legal and religious perspectives and commentary on evolution.
Evolution/Creation Science Controversy Continues in Wichita, Kansas - A brief overview of the Kansas State Board of Education's 1999 decision to eliminate the requirement that evolution be required in the public school curriculum.
Meta Description: [ Search the power of About's network of topics ]
Kansas Science Standards Controversy - A review of the controversy from the standpoint of a Christian geologist, who points out why the situation does not require such polarized positions.
ReligiousTolerance.org on Evolution and Creationism - Overview and history of the Evolution/Creation debate.
Meta Description: [ beleifs about origins of life, the Earth, and the rest of the universe, including theory of evolution
and creation science ]
Scopes Trial 75th Anniversary - Radio program discussing the history of the Scopes trial, its effects on the U.S. nation, and how evolution should be dealt with in schools today.
Meta Description: [ July 21, 2000, Hour Two: Scopes Trial 75th Anniversary ]
Was Darwin Wrong? The Critics of Evolution - Approximately 40 book reviews by Gert Korthof covering various sides in the evolution/creationism debate.
Meta Description: [ This site aims at a careful and fair evaluation of arguments for and against evolution and Darwinism. Contains book reviews, introduction and feedback pages. ]
| Evidence FOR Evolution and Against Creationism | |
| Next Video | |
