After an ice age, a population of brown bears became divided…

Questions

After аn ice аge, а pоpulatiоn оf brown bears became divided by large glaciers. One isolated group moved north and adapted to colder environments, developing traits like white fur and thick blubber for insulation. Over many generations, this isolated population became reproductively distinct from the southern brown bears. This scenario represents speciation due to geographic separation. What is the name of this type of speciation? (3 points)