51:4.2

The earlier races are somewhat superior to the later; the red man stands far above the indigo—black—race. The Life Carriers impart the full bestowal of the living energies to the initial or red race, and each succeeding evolutionary manifestation of a distinct group of mortals represents variation at the expense of the original endowment. Even mortal stature tends to decrease from the red man down to the indigo race, although on Urantia unexpected strains of giantism appeared among the green and orange peoples.