The Voyage of the Beagle and Darwin’s theory.

Darwin was doing a voyage, for his second expedition. It set sail from Plymouth Sound on 27 December 1831.

The book, also known as Darwin’s Journal of Researches,that demonstrates Darwin’s keen powers of observation, written at a time when Western Europeans were exploring and charting the whole world.Darwin’s notes made during the voyage include comments illustrating his changing views at a time when he was developing his theory of evolution by natural selection and includes some suggestions of his ideas.

Darwin Visits the Galapagos Islands

After considerable explorations in South America, the Beagle reached the Galapagos Islands in September 1835. Darwin was fascinated by such oddities as volcanic rocks and giant tortoises. He later wrote about approaching tortoises, which would retreat into their shells. The young scientist would then climb on top, and attempt to ride the large reptile when it began moving again. He recalled that it was difficult to keep his balance.

While in the Galapagos Darwin collected samples of mockingbirds, and later observed that the birds were somewhat different on each island. This made him think that the birds had a common ancestor, but had followed varying evolutionary paths once they were separated.

Darwin, H.M.S. Beagle, and the Theory of Evolution

Darwin had been exposed to some thinking about evolution before embarking aboard H.M.S. Beagle. So a popular conception that Darwin’s voyage gave him the idea of evolution is not accurate. Yet is it true that the years of travel and research focused Darwin’s mind and sharpened the powers of observation that would eventually lead to the publication ofOn the Origin of Species in 1859.

(Lo siiento profe si no esta muy bien, estoy de vacaciones y suerte que lo he podido hacer, conectandome un rato en un bar…)

Bibliografia

Wikipedia

http://history1800s.about.com/od/innovators/a/hmsbeagle.htm

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  1. #1 by maria on March 20, 2013 - 9:45 pm

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