The evolution of one or more species from an existing species.

Speciation is the process of forming two new species from a common ancestor species. Speciation is the central process of macroevolution, the evolution of novel forms.

The development of a species through evolution. A species forms when its members become reproductively isolated from all other organisms. Speciation can occur through geographic separation that eliminates gene flow or through adaptive radiation.

Evolution of one species into another species. Has been observed in some organisms, thus is part of factual basis of the theory of biological evolution.

The generation of two different species from a common ancestor.

the evolution of a species

Speciation is a process that occurs naturally in evolution and is modeled explicitly in some genetic algorithms.