Speciation is the formation of new biological species and involves populations becoming physically isolated, developing genetic variation, experiencing different natural selection pressures, and eventually becoming unable to interbreed successfully.
La speciazione è la formazione di nuove specie biologiche e comporta isolamento fisico delle popolazioni, variazione genetica tra le popolazioni, selezione naturale operante in modo diverso, portando infine all'impossibilità di un incrocio redditizio.
| Front | Speciation definition: Stages of speciation (1-4) |
|---|---|
| Back | The formation of new biological species 1-populations become physically isolated from each other 2-genetic variation is present between two populations 3-natural selection operates differently in the two populations 4-the populations become so different that succesful interbreeding is no longer possible |
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