Question

When a population is split into smaller group, why do these groups develop different traits?

Answer 1

The evolutionary system will take a shot at the two subgroups autonomously When a gathering is part drives like normal choice and hereditary float influence the qualities of the two subgroups in an unexpected way. Transformations that emerge in one gathering are not going to the next gathering through propagation.

Answer 2

Mutations that arise in one group are not passed to the other group through reproduction.