DNA from ancient skeleton shows ties to Native Americans

An ancient skeleton found nearly 20 years ago in a river in Washington is related to Native Americans, says a DNA study that could help resolve a long-running dispute over its ancestry and custody.

Air pollution becomes Asia's migraine

Air pollution has become a curse for millions of city-dwellers in Asia, posing a mounting risk to the very young and very old, pregnant women and people with heart and respiratory problems, say experts.

2011 UK Census: Ethnic diversity is home grown

Immigration has had less significant impact than British births on the rising population of most of England and Wales' ethnic groups, according to the latest analysis of the 2011 Census by University of Manchester researchers.

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