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Extinct human relatives interbred with mystery species

Last Updated: Wednesday, November 20, 2013, 17:27

An extinct human relative interbred with a mystery human species, according to a new study.

Genetic evidence reveals origin of India`s caste system

Last Updated: Friday, August 09, 2013, 12:37

A recent study has revealed that the present caste system persisting in the Indian population is the result of a recent population mixture among divergent demographic groups.