Dark fur, light fur, dark fur, and light fur, light rocks only, dark rocks, and light rocks, rocks of intermediate color. More individuals with darker fur, more individuals with lighter fur, more individuals with intermediate fur color. Mode of selection: Directional selection, Disruptive selection, Stabilizing selection. Habitat in which selection would occur: dark rocks only. Group 2, Group 2. Phenotype(s) favored by natural selection: Group 1, Group 1. Fur of intermediate color. Effect on overall makeup of population: more individuals with dark fur or light fur, fewer with intermediate colors. Group 3.