For instance, a large amount of variation among individuals allows a species to rapidly adapt to new habitats, lessening the chance of it going extinct, while a wide geographic range increases the chance of speciation, by making it more likely that part of the population will become isolated.
For eksempel kan en stor mængde af variation blandt individer tillader en art til hurtigt at tilpasse sig nye habitater og mindske chancen for at uddød, mens et vidt geografisk område øger chancen for artsdannelse, ved at gøre det mere sandsynligt, at en del af befolkningen vil blive isoleret.