Uncategorized
- Earth
Underground Soil Economy: Microbes hidden in the dirt react to UV boost
The community of soil microbes may live hidden in the ground, but it still changes when there's more ultraviolet radiation above.
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In this article, Alan R. Templeton of Washington University used 10 sources of DNA for his geographic study of human origins. Peter A. Underhill of Stanford feels the population sampled was too small for statistical significance. How many would it take for an expanded version to be significant? Is there a chance such an enlarged […]
- Anthropology
DNA Diaspora: Humanity may share tangled genetic roots
A controversial new genetic analysis concludes that Homo sapiens evolved by expanding out of Africa in multiple waves beginning at least 600,000 years ago and then interbreeding, rather than totally replacing close relatives such as the Neandertals.
