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show drawings of animals and how they used to look which you can compare them to now to see how much they have evolved

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As the tan mice are more visible so the population of tan mice reduces so the population of black mice increases. This causes the tan mice to die out while the black mice thrive

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Bones in animals that are alive now have similar or the same bone structures.

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A lot of the evidence for evolution comes from fossil record. Fossils show how much an organism has changed over time. A problem with fossil record is that it contains gaps as not all organisms fossilise well and many of them get destroyed or haven't been discovered yet.
Source: http://www.bbc.co.uk/schools/gcsebitesize/science/21c_pre_2011/evolution/theoryevolutionrev7.shtml

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Due to the edges of continents connecting like a jig-saw puzzle and the same fossils found on different continents backs up the theory of all the continents were once connect to make Pangea.

This theory provides evidence to evolution as if the same fossils were found in 2 different continents then how come each continent has a variety of different species.

source: general knowledge