 However, those from Flores, Vietnam, and Thailand are distant samples in comparison.This discovery suggests that the Moh Khiew Cave skeleton may have shared a common ancestor with Australian Aborigines and Melanesians and also supports the ‘Two Layer’ hypothesis.A study conducted in 2005, examined and compared permanent teeth from 4,002 individuals found in 42 prehistoric and historic samples throughout East Asia, Southeast Asia, Australia, and Melanesia.