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Contributors To Evolutionary Theory

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Maja Zekic

on 24 October 2014

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Transcript of Contributors To Evolutionary Theory

Charles Darwin
Part of evolution Explained by his Theory
James Hutton
Prior Understanding of Evolution
Part of evolution Explained by his Theory
Charles Lyell
“Charles Lyell rephrased and republished many of James Hutton's ideas and called the idea Uniformitarianism.” (Heather Scoville, Learn About the Life and Works of Geologist Charles Lyell, October 19, 2014) Lyell’s book, that had Hutton’s ideas, inspired Darwin as he sailed on the HMS Beagle to use the idea of an “ancient” mechanism that had been working the same at the beginning of Earth as it is today. Lyell was not a firm believer in evolution until Charles Darwin published On the Origin of Species. He began to adopt the idea that species change over time and eventually published The Geological Evidence of the Antiquity of Man. This combined Darwin's theory of evolution through Natural Selection and his own idea.

Prior Understanding of Evolution
Contributors To Evolutionary Theory
Jennifer, Iva & Maja
Evidence used for their Contibution to Evolutionary Theory
Evidence used for their Contribution to Evolutionary Theory
Galapagos Finches
Or take the Galapagos finches. The University of Michigan states that each Galapagos island has its own kind of finch. They have different sized beaks suited for a variety of feeding patterns (seeds, insects, wood etc.) but all came from the mainland finch of South America.

"James Hutton." About. Heather Scoville, n.d. Web. 19 Oct. 2014. <http://evolution.about.com/od/scientists/p/James-Hutton.htm>

"Learn About the Life and Works of Geologist Charles Lyell." About. Heather Scoville, n.d. Web. 19 Oct. 2014. <http://evolution.about.com/od/scientists/p/Charles-Lyell.htm>

"Image." Image. N.p., n.d. Web. 20 Oct. 2014. <http://i.imgur.com/bHCZGnG.jpg>

"Evolution and Natural Selection."Evolution and Natural Selection. N.p., n.d. Web. 19 Oct. 2014. <http://www.globalchange.umich.edu/globalchange1/current/lectures/selection/selection.html>

"BCB705 Biodiversity: Chapter2 - Evolution of Biodiversity." Darwin and the Giant Tortoises. N.p., n.d. Web. 22 Oct. 2014. <http://planet.uwc.ac.za/nisl/biodiversity/loe/page_02.htm>

Darwin's Theory Of Evolution." Darwin's Theory Of Evolution. N.p., n.d. Web. 18 Oct. 2014. <http://www.darwins-theory-of-evolution.com/>

Than, Ker. "What is Darwin's Theory of Evolution?." LiveScience. TechMediaNetwork, 7 Dec. 2012. Web. 20 Oct. 2014. <http://www.livescience.com/474-controversy-evolution-works.html>

"Peppered moth evolution." Wikipedia. Wikimedia Foundation, 23 Oct. 2014. Web. 23 Oct. 2014. <http://en.wikipedia.org/wiki/Peppered_moth

"Peppered moth evolution." Wikipedia. Wikimedia Foundation, 23 Oct. 2014. Web. 23 Oct. 2014. <http://en.wikipedia.org/wiki/Peppered_moth_

"Riena's Science Blog." : Current Events: Evolution in the Peppered Moth. N.p., n.d. Web. 23 Oct. 2014. <http://rienascienceisb.blogspot.ca/2012/05/current-events-evolution-in-peppered.html>.

“Hutton hypothesized that the interior of the Earth was very hot and the processes that changed the Earth long ago were the same processes that were at work on the Earth in present day.” (Heather Scoville, James Hutton, October 19, 2014). In his book he stated that life also followed this pattern. The ideas about life changing over time using the same mechanism since the beginning of time was with the idea of evolution before Charles Darwin and his theory of Natural Selection. “Hutton's Uniformitarianism indirectly sparked the idea of natural selection for Darwin.” (Heather Scoville, James Hutton, October 19, 2014)
The World Wildlife Fund speaks of the different species of tortoises in the Galapagos islands. They vary in shell shape and size depending on their environment and vegetation but all share a common ancestor who came from the mainland of South America. For example, tortoises in well-watered habitats with short vegetation have dome shaped shells.

However, tortoises on drier islands have longer necks and shells with higher peaks for reaching food that’s higher off the ground.

Natural Selection
Charles Darwin was convinced that all life is related and descended from the same common ancestor
Strongly believed in descent by modification
Complex creatures have all evolved from a simple ancestor
Genetic mutations occur and the ones that are beneficial are preserved because they help the organism survive and the ones that aren't eventually die out
In conclusion completely different organisms can be created
During the industrial revolution, some of the white moth's offspring developed a genetic mutation causing them to have more black spots than others. This helped them camouflage on trees that were darkened by pollution.
That was evolution due to a mutation that became beneficial because of a change in the environment.
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