The sequencing of a boy belonging to the ancient American Clovis culture, published last week in Nature , showed that indigenous groups from North and South America are related to a single population that crossed the Bering land bridge from Asia.
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An Australian study of personalized medicine has run into problems as it recruits patients.
In Science this week: mtDNA analysis give glimpse into decline of Neanderthals in Europe, and more.
The University of Arizona's Raina Maier writes that an understanding of the Earth's microbiome is needed.
The proposed Canadian budget emphasizes partnerships with industry, Nature News reports.