Charles darwin & The Galapagos Islands
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Transcript of Charles darwin & The Galapagos Islands
Charles Darwin &
The Galapagos Islands
Charles Darwin
• Charles Darwin the famous naturalist sailed to the Galapagos Islands in the HMS Beagle in 1831.
• Thirty years later he published his Theory of Evolution, one of the most revolutionary ideas science has ever known.
• On December 27, 1831, the HMS Beagle launched its voyage from U.K. with Darwin in tow.
• Darwin had the unique opportunity to closely observe principles of botany, geology and zoology.
Research on tortoise at Galapagos
• Adaptation in the carapace as per habitat.
• Species living in habitat with food(grass) at low level had round carapace and short neck.
• Those living in area with food(grass) at height had long neck and backed carapace.
• The size and shape of the finches’ beaks was due to their adaptation to a particular environmental niche.
• Stated two theories from the observations.
• Darwin discovered that Galapagos finches have thirteen different kinds of beaks.
The Theory of Evolution
• A species is a population of organisms that interbreeds and has fertile offspring.
• Living organisms have descended with modifications from species that lived before them.
Darwin and Natural Selection• More organisms are produced than can survive
because of limited resources.
• Organisms struggle for the necessities of life; there is competition for resources.
• Individuals within a population vary in their traits; some of these traits are heritable.
• The advantageous trait is being carried to next generation.
• Ecuador Government established Charles Darwin’s Research Station at Galapagos.
• The place is famous for Darwin’s name and the Giant Tortoise and the natural beauty.
More about Galapagos Island