How did the finch population change?
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How did the finch population change from before the drought to after? According to Figure 1, the average beak depth increased in size and the finch population had more finches with greater beak depths in 1978 than before the drought.
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The population decreased by 80, from 1000 to 920. ... The bars represent the numbers of finches that have different beak depths. The range of beak depths is equal to the difference between the largest and smallest beaks.
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