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After travelling on a 5 year voyage around the world he published a book called 'On the Origin of Species' which was published in 1859

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After travelling on a 5 year voyage around the world he published a book called 'On the Origin of Species' which was published in 1859

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Sourced: www.bbc.co.uk/schools/gcsebitesize/science/21c_pre.../theoryevolutionrev2.shtml

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Darwin believed that variations in a species is a common feature in natural populations. He believed that these species will produce offspring with stronger genetic features better suited to each environment; these will have offspring that have a higher chance of surviving in an environment.

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Darwin believed that variations in a species is a common feature in natural populations. He believed that these species will produce offspring with stronger genetic features better suited to each environment; these will have offspring that have a higher chance of surviving in an environment.

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Source:
https://www.ndsu.edu/pubweb/~mcclean/plsc431/popgen/popgen5.htm

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Charles Darwin & Alfred Wallace visited the Galapagos Islands in 1835 where he found several species of finch adapted to different environmental niches . This was due to different food sources, beak shape and how the food was captured.

Sourced:
evolution.berkeley.edu/evolibrary/article/history_14

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Darwin discovered that the finches from the Galapagos have adapted to have different beaks due the different food that they need to find. This as well as his other journeys to South America and other countries  allowed him to form his idea of Natural Selection. 

# data[].attributes.subject
Darwin discovered that the finches from the Galapagos have adapted to have different beaks due the different food that they need to find. This as well as his other journeys to South America and other countries  allowed him to form his idea of Natural Selection. 

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Charles Darwin believed that individuals in a species show a wide range of variation. This variation  is because of differences in their genes. Individuals with characteristics  most suited to the environment are more likely to survive and reproduce. the genes that allow these individuals to be successful and are passed to their offspring. 

# data[].attributes.subject
Charles Darwin believed that individuals in a species show a wide range of variation. This variation  is because of differences in their genes. Individuals with characteristics  most suited to the environment are more likely to survive and reproduce. the genes that allow these individuals to be successful and are passed to their offspring. 

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http://www.bbc.co.uk/schools/gcsebitesize/science/21c_pre_2011/evolution/theoryevolutionrev2.shtml