Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
Cladogenesis

describes the evolutionary process resulting in the appearance of new species by the fission of an ancestral lineage in at least two descending lines. Speciation by cladogenesis is the consequence of mutation phenomena, selections and progressive segregations. This process is virtually the only one that caused the appearance of new species for the superior animals.

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