A subspecies is a branch showing slight but significant differences from another branch living in a different area.
Few traits are unique to any one race.
It is the combination of several traits that indicate racial identity. Accurate race determination can be made by blood analysis or by measuring and comparing certain body dimensions. Ninety-eight percent of all Hindus belong to the Caucasoid race. There are also large numbers of Hindu Mongoloids in Nepal and Assam and some Australoids, such as the Gond and Bhil tribes of India. North and South Indians are among Earth's 2.5 billion Caucasoids, whose traits include straight to wavy hair, thin lips, small to medium teeth, blue to dark brown eyes and a high incident of A 2 -Rh and Gm blood genes.