Macroevolution – the historical development of a species and larger taxonomic groups, covering large periods of time; supraspecific evolution.
Macroevolution includes processes leading to the formation of systematic groups larger than a species (genera, families, orders, etc.).
Divergence is the main way to implement macroevolution.
Unlike microevolution, macroevolution is inaccessible to direct observation and experimental confirmation, since it occurs slowly and takes millions of years. Evidence for macroevolution comes from paleontology, comparative anatomy, embryology, biochemistry, and biogeography.
The processes of the formation of new species and the processes of the formation of larger systematic groups do not differ significantly. Macroevolution is based on microevolutionary factors: variability, the struggle for existence, and natural selection.
The process of microevolution, causing the divergence of populations, continues without interruption and at the macroevolutionary level within the groups of organisms that have arisen. Microevolution and macroevolution should be considered as two sides of a single evolutionary process.
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