= Evolutionary biologist
An <evolutionary biologist> investigates inherited change and the historical relationships of <organisms>. Work can combine <genetics>, <ecology>, <paleontology> and experiments, connecting mechanisms such as <natural selection> and <genetic drift> to patterns of diversity.
A central task is separating competing causes: a shared <allele> might reflect <common descent>, <gene flow> or repeated <mutation>. Which comparison is informative depends on the biological question and the history being tested.
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