What is the role of evolution in taxonomy? Evolution is a progressive change that proceeds through genetic variation, natural selection, and genetic drift.
Through evolution, living things evolve to thrive and adapt to the ever-changing environment. A certain group of organisms can evolve so markedly that they diverge into different groups within the group, forming new species.
The process of the formation of new species is called
speciation.
Modern taxonomy describes evolutionary links.
A taxonomic group must always refer to a set of organisms that descended from the same ancestor, at some point in evolutionary history. Species within the same genus all share a common ancestor. The same goes for each genus within one family and so on.
According to modern taxonomists, taxonomy is nowadays so intertwined with evolutionary theory, that it can be difficult to delineate when a researcher's "doing
taxonomy" and when they're "doing
evolutionary biology".
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